Chọn câu trả lời đúng nhất và giải thích

Chọn câu trả lời đúng nhất và giải thích
1--- They will have to find a better solution
A. A better solution will have to be found
B. A better solution will have to be find
C. A better solution will be have to be found
D. A better solution will have been to be found.

2---- Steve and Susan broke up__________
A. after having been together for three years
B. since being together for three years
C. had they been together for three years
D. While being together for three years

3---- Yours son often makes many mistake in the essay because he isn't____
A. attentive. B. inattentive C. attention D. attentively

4-----Her children learn English very well.It_____at this hight school for 2 years.
A. has learned
B. has been learned
C. had been learned
D. has being learned.

5---- When coming back home my aunt found that all of her money____.
A. had been stolen
B. was stealing
C. had stolen
D. would be stolen.