I’m not sure whether I can gain any profit from the investment, so I can’t make a(n)
A.which
B.where
C.whether
D.when
A.which
B.where
C.whether
D.when
I'm not sure whether I can gain any profit from the investment, so I can't make a (an) ______ promise to help you.
A.accurate
B.defined
C.definite
D.sure
I'm sure that they will ______ the game. ()
A.beat
B.succeed
C.success in
D.win
I'm sure I can ______ him into letting us stay in the hotel for the night.
A.speak
B.say
C.talk
D.tell
A.would
B.should
C.might
D.must
I'm sure he is up to the job ______ he would give his mind to it.
A.if only
B.in case
C.until
D.unless
A.keep off
B.keep away from
C.keep up with
D.keep on
A:I’m sorry.He’s not in his office.
B:______________
A.Are you Sure he will be back soon?
B.Would you like to leave a message?
C.Can you take a message for me?
D.Shall I call him sometime later?
I'm not sure where our teacher is. She ______ to see Xiao Wang, who is ill at home.
A.can't have gone
B.shouldn't have gone
C.might have gone
D.must have gone
A.I don’t know.
B.Who cares?
C.It doesn’t matter.
D.Sure, go ahead.
Speaker A: I'm tired. Maybe we can finish it tomorrow.
Speaker B:__________ We could do it first thing tomorrow morning.
A. Why not!
B. Can we?
C. You sure'?
D. Shall we?