His father _____ to Nanjing. He _____ back next week.A. has been, is B has been, will be C. has gone, is D. has gone, will be
The street is covered with rubbish and .
Miss Smith is a friend of.
Nobodyme can do it.
We visited the factory _____ makes toys for children.
—Can you make sure _____? — Sorry, I can’t. But I did see her just now.