Look, dark clouds are gathering.It is________to rain soon.[ ]

to open the door, but it _____ open

People says your little brother has been admitted into Qinghua University. — Yes. Never ________ he could achieve so much success.

The country’s car industry is so strongly protected that foreign cars are seen there

Do you have any problem in getting accustomedto________in the north?—Yes.It is too cold in winter.[ ]