1. ____ he comes in half an hour, I shall go alone. A. Because B. If C. Unless D. Howe

1.    ____ he comes in half an hour, I shall go alone. A. Because                   B. If                             C. Unless                D. However 2.    Do you know English is a ____ subject in schools in Viet Nam now? A. alive                         B. compulsory         C. second               D. official 3.    I have no idea where we are. I … Đọc tiếp