You must assure that we would get the goods ____ in time.
A.producing
B.produced
C.to production
D.production
A.producing
B.produced
C.to production
D.production
第1题
A.ensure
B.assure
C.make sure
D.see to
第2题
You must ______ the important points the teacher says.
A.note down
B.turn to
C.put on
D.get over
第4题
A.permission
B.omission
C.celebration
D.graduation
第5题
You must be very careful when handling these acids______they are very concentrated.
A.as
B.when
C.if
D.while
第7题
B.it didn’t
C.it mustn’t
D.it must haven’t
第9题
A. must
B.may not
C.don’t need
D.needn’t
第10题
You must (follow) the directions (exactly), and if you become (confusing), you must take the time (to go) back and read them over.
A.follow
B.exactly
C.confusing
D.to go
第11题
______youve found, you must give it back to the owner.
A.Whichever
B.What
C.Whatever
D.Which