判断下面翻译的正误。
他的设计肯定还没完成。
A：He mustn’t have completed his design．
B：He can’t have completed his design．
他来这儿不是为了求得我们的帮助。
A：He did not come here to ask us for help．
B：He came here not to ask us for help．
我认为这不值得一试。
A：I don’t think this is worth trying．
B：I think this is not worth trying．
这些规章制度多不完善！
A：How not perfect the rules and regulations are!
B：How imperfect the rules and regulations are!
你不必为军衔和薪金担心。
A：You won’t have to worry about rank and pay．
B：You won’t have to worry about rank or pay．
把下列对话用线连起来。
按要求完成练习。
The wind carries sand from the deserts to the cities, so it causes air pollution．(改写句子)
→The wind carries sand from the deserts to the cities, ________ air pollution．
He was late for class as a result of the traffic jam．(改写句子)
→He was late for class ________ the traffic jam．
We were amazed to find that no one ________(hurt)．(用所给词填空)
________(avoid)the city centre, we may turn right here and take the belt highway．(用所给词填空)
