—The light in his office is still on. Do you know _______?
—To prepare for the material(材料) the meeting will need tomorrow, I think.
| A．if he works hard | B．why he stays up so late |
| C．why is he so busy | D．when he will stop working |
Could you tell me how long __________ the football club?
| A．you have joined | B．have you joined |
| C．you have been in | D．have you been in |
--Where would you like to go for the coming vacation?
--I’d like to go _______.
| A．interesting somewhere | B．peaceful anywhere |
| C．somewhere interesting | D．anywhere peaceful |
-Do you know the name of the cat ______ is lying on the ground?
--Of course, it’s my pet. Its name is Mimi.
| A．who | B．what | C．which | D．/ |
-- ________ your homework yet?
-- Not yet. I _______ it.
| A．Have you done; am doing | B．Did you do; am doing |
| C．Have you done; did | D．Did you do; did |
-- Did you read a book about customs last week?
-- Yes, I found ______ very useful to know the customs of foreign countries.
| A．that | B．this | C．it’s | D．it |