24.Excuse me, Madame. You still haven’t answered my question yet. Was it at 8 o’clock you heard Mr. Croft_______at the door?
-----Tony said he could fix my bicycle, but I really doubt it. ----- _____.He’s good at that sort of thing.
In order to find ____better job, he decided to study _____second foreign language.
Do you think this shirt is too tight ____ the shoulders?
We ______ the difficulty together, but why didn’t you tell me?
______ at the door before you enter my room, please.