________ HE COMES IN HALF AN HOUR, I SHALL GO ALONE.A. IF B. BE...

26. - DAP AN DE THI THU TOT NGHIEP 2011
Tiếng Anh DAP AN DE THI THU TOT NGHIEP 2011

26. ________ he comes in half an hour, I shall go alone.

A. If B. Because C. Unless D. When