1.When they got back home from the cinema last night,they found that the house____ into.
A.was broken B.had been broken.
break是点动词吗?不是的话怎么能持续呢
2.---You seem sleepy,Tim.
---Oh,I ___ all night preparing for the report and I can hardly keep my eyes open now.
A.stayed up B.have been staying up
这道题怎么又变成现在完成时了?
3.He suffered from serious test anxiety.____,he could neither sleep nor eat well before the important exam.
A.In that case B.As a result
为什么不能用A?
就是这样