Perhaps he will return before you call. A. He may be returning before you called. B. He may/might have returned before you called. C. He should have returned before you called. D. He may 80/147Perhaps he will return before you call.He may be returning before you called.He may/might have returned before you called.He should have returned before you called.He may return before you call.Giải thíchChọn D