Choose the correct item:
1) You ... talk with your mouth full.
A - mustn't
B - needn't
C - let
2) I haven't seen him ... Christmas.
A - for
B - since
C - from
3) He has ... finished his homework.
A - yet
B - still
C - already
4) A'll be ready by the time you ... home.
A - come
B - will come
C - would come.
5) That's Steve ... brother works with me.
A - which
B - Who
C - whose
6) You ... wear a suit. It's an informal meeting.
A - mustn't
B - needn't
C - must
7) If I were you, I ... to him.
A - will apologise
B - would apologise
C - apologised
8) How long ... did he leave?
A - ago
B - before
C - sinse