—I didn’t see her yesterday.—Of course, you _____, because she had gone to a trip.
The book is _______ that one.
The name of our country is PRC, which _____ the People’s Republic of China.
He came back late, _____ which time all the guesses had already left.
Because so many visitors are visiting our school today, some teachers have to _______ guides.
She thinks only of herself; she doesn’t _____ other people.