_______ does Tom like math? —Because _____ fun.
Are you still working in that company, Mary?—No, it is ten months ____ I worked there．
Excuse me. What did you say you would like to do, Miss White?— I said I’d better go back to the office and I __________ someone this afternoon.
Attention, please. The plane has to be _________ because of the foggy weather.— Oh, bad luck! We have to wait now.
Turn___________/left/ and you’ll see the post office.