问题
It was Mr Zhang that helped us out of the trouble. Without his help, we ______ it so easily.
A:can’t manage
B:mustn’t have managed
C:couldn’t have managed
D:couldn’t manage
B:mustn’t have managed
C:couldn’t have managed
D:couldn’t manage
正确答案是：
同类题型
How many students are there in each group— Usually each group _______ six students in our class.
Ann is in hospital. ——Oh, really I_______ know. I_______ go and visit her.
Where do you live— In Beijing. It is one of in China.
Some insects ______ the colour of their surroundingsto protect themselves.