希望大家帮小妹把答案找出来,并写出为什么选该答案.

希望大家帮小妹把答案找出来,并写出为什么选该答案.
after a long walk ,the old marl _____be timed .
A can B must C carl D should
she said that he _____ smoke there
A might B mustn't C would D should
can you have _____cakes
A two another B another two C her two D another the two
I'm afraid your luggage will be among _____ to arrive
A fouth B forth C the fourth D fourths
there were _____people in the room
A two score of B two scores of C two score D two scores
Even a child can know ninety there is thirty
A .minus B plus C times D divided by
It was on October lst _____new china was founded
A which B when C sa D that
Both David and i _____engineers
A am B is C are D he
Yesterday he spend about an hour _____ his homework
A with doing B on doing C in D on
the train _____for ten minutes
A has gone B has left C has been away D has been
this is the biggest tiger _____ has ever been shown in the zoo
Athat B which C who D whom
this is the man _____ photo i took yesterday
A who B whose C whoM D that
when you're learning English use it _____ you'll lose it
A but B or C then D an d
this is the worker_____son died in a tiaffic accident
A whose B whom C who D that
yesterday i met Dr li _____told me the good news
A who B when C which D when