1.Whendidyou(A.reachB.arriveC.gotD.arrivein这题我选D的,可答案选B,为什么不需要加介词?是我错,2.Doyouhaveanydifficulties()outtheproblem?A.workingB.toworkC.worksD.work为什么要选择A3.Tomhastowsisters,one

Question

1.When did you(
A.reach B.arrive C.got D.arrive in
这题我选D的,可答案选B,为什么不需要加介词?是我错,
2.Do you have any difficulties ( )out the problem?
A.working B.to work C.works D.work
为什么要选择A
3.Tom has tow sisters ,one is doctor ,( )is cook.
A.anthoer B.others
C.other D.the other
请说明理由

Answer 1

1.B因为前面用的是When,问“你什么时间到达”,无论题目中还是你将作出的回答中都没有具体地点这一宾语,自然也就不需要介词了~这样的问题：Which place did you arrive in/at?才是用介词的.2.have difficulty(ies) do...