It was because I didn't attend the meeting ______ I had no idea about the matter.
_____writer is better known in China, Charles Dickens or Mark Twain?
Shall we stay at home or_____to the park?
——Do you think the question easy or not?—— _____ .
I go or_____you go yourself?
——Would you rather go there by train or by air?—— _____.