Once.
Twice.
Three times.
Four times.
第1题:
I wonder how many years ago _______.
A.did you father retire
B.your father retired
C.has your father retired
D.your father has retired
第2题:
Amany Jack friends
Bmany Jack’s friend
CJack’s many friends
Dmany friends of Jack’s
第3题:
A.2
B.3
C.4
D.5
第4题:
How many drypowder extinguishers has your ship exactly been______.
A.produced
B.provided with
C.supplied by
D.met with
第5题:
HOW many times did the clock__________?
A.hit
B.knock
C.beat
D.strike
第6题:
I know you are planning a trip to Europe this autumn.Do you know_______?
A:how much it will cost
B:how much has it cost
C:how much cost it will
D:how many will it cost
第7题:
A.1
B.2
C.10
D.20
第8题:
A.1
B.2
C.3
D.4
第9题:
High-speed rotation in a centrifugal purifier can produce a force ______the force of gravity.
A.many thousand times larger than
B.the same as
C.many thousand times smaller than
D.which has nothing to do with
第10题: