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Unit 49 · Questions

Do you know where ... ? I don't know what ... etc.

Study

A

We say: Where is Paula?

but Do you know where Paula is? (not Do you know where is Paula?)

In the same way we say:

I know
I don't know where Paula is.
Can you tell me

Compare:

Who **are** those people? but Do you know who those people **are**
How old **is** Nicola? Can you tell me how old Nicola **is**
What time **is** it? what time it **is**
Where **can** I go? where I **can** go
How much **is** this camera? how much this camera **is**
When **are** you going away? I know when you're going away
Where **have** they gone? I don't know where they **have** gone
What **was** Kate wearing? I don't remember what Kate **was** wearing
B

Questions with do/does/did (present simple and past simple)

Where does he live?

but Do you know where he lives? (not Do you know where does he live?)

Compare:

How do airplanes fly? but Do you know how airplanes fly
What does Jane want? I don't know what Jane wants
Why did she go home? I don't remember why she went home
Where did I put the key? I know where I put the key
C

Questions beginning Is ... ? / Do ... ? / Can ... ? etc. (yes/no questions)

Compare:

Is Jack at home? but Do you know if Jack is at home
Have they got a car? or they've got a car
Can Ben swim? I don't know whether Ben can swim
Do they live near here? they live near here
Did anybody see you? anybody saw you

You can use if or whether in these sentences:

o Do you know if they've got a car? or

Do you know whether they've got a car?

o I don't know if anybody saw me. or

I don't know whether anybody saw me.

Exercises (6)

0/6 exercises checked
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49.1

Answer these questions with I don't know where/when/why ... etc.

  1. 1
    Have your friends gone home?
    I don't know where they've gone. example
  2. 2
    Is Kate in her office?
    I don't know where .
  3. 3
    Is the castle very old?
    I don't know how old .
  4. 4
    Will Paul be here soon?
    I don't know when .
  5. 5
    Was he angry because I was late?
    I don't know why .
  6. 6
    Has Emily lived here a long time?
    I don't know how long .
49.2

Complete the sentences.

  1. 1
    (How do airplanes fly?)
    Do you know how airplanes fly? example
  2. 2
    (Where does Susan work?)
    I don't know where Susan .
  3. 3
    (What did Peter say?)
    Do you remember what Peter .
  4. 4
    (Why did he go home early?)
    I don't know why he went home .
  5. 5
    (What time does the meeting begin?)
    Do you know what time the meeting .
  6. 6
    (How did the accident happen?)
    I don't remember how the accident .
49.3

Which is right?

  1. 1
    Do you know what time is it / it is?
  2. 2
    Why are you / you are going away?
  3. 3
    I don't know where are they / they are going.
  4. 4
    Can you tell me where is the museum / the museum is?
  5. 5
    Where do you want / you want to go for your holidays?
  6. 6
    Do you know what do elephants eat / elephants eat?
  7. 7
    I don't know how far is it / it is from the hotel to the station.
49.4

Write questions with Do you know if ... ?

  1. 1
    (Have they got a car?)
    Do you know if they've got a car? example
  2. 2
    (Are they married?)
    Do you know ?
  3. 3
    (Does Sue know Bill?)
    Do you know ?
  4. 4
    (Will Gary be here tomorrow?)
    Do you know ?
  5. 5
    (Did he pass his exam?)
    Do you know ?
49.5

Write questions beginning Do you know ... ?

  1. 1
    (What does Laura want?)
    Do you know what Laura wants? example
  2. 2
    (Where is Paula?)
    Do you know where Paula ?
  3. 3
    (Is she working today?)
    Do you know ?
  4. 4
    (What time does she start work?)
    Do you know what time she ?
  5. 5
    (Are the shops open tomorrow?)
    Do you know ?
  6. 6
    (Where do Sarah and Jack live?)
    Do you know where Sarah and Jack ?
  7. 7
    (Did they go to Jane's party?)
    Do you know ?
49.6

Use your own ideas to complete these sentences.

  1. 1
    Do you know why the bus was late.
  2. 2
    Do you know what time {}.
  3. 3
    Excuse me; can you tell me where {}.
  4. 4
    I don't know what {}.
  5. 5
    Do you know if {}.
  6. 6
    Do you know how much {}.