THEY COULDN"T FINISH IT ________ THERE WAS NO ADEQUATE SUPPORT....

11. - 421 CÂU TRẮC NGHIỆM ÔN THI ĐẠI HỌC
421 CÂU TRẮC NGHIỆM ÔN THI ĐẠI HỌC

11.They couldn"t finish it ________ there was no adequate support.

A. becauseB. because of C. why D. so long