You can' t ______your promise; all the people here are depending on you.A.back offB.back u
You can' t ______your promise; all the people here are depending on you.
A.back off
B.back up
C.back on to
D.back out of
You can' t ______your promise; all the people here are depending on you.
A.back off
B.back up
C.back on to
D.back out of
You can’t expect her_________ on time if you are late yourself.
A.have been
B.being
C.be
D.to be
You can' t hear what I'm saying ______ you stop talking.
A.only if
B.unless
C.lest
D.except that
You can speak______in front of George, but you can * t eat______in his restaurant.
A.freely, free
B.free, freely
C.free, free
D.freely, freely
—I always look out before crossing the street.
—You are right. You can't be too______.
A. nervous
B. careful
C. careless
D. hurried
--I can't find my wallet.
-- ______ it at home?
A. Must you leave
B. Maybe you leave
C. You might left
D. Might you have left
Don't forget to post the letter for me,______?
A. do you
B. will you
C. are you
D. can you
You can't see the president______you've made an appointment with him.
A.when
B.if
C.unless
D.except