If you don’t try your best to learn all subjects, you will behind.
A. stay
B. leave
C. fall
D. remain
网友回答
A. stay
B. leave
(答案→)C. fall
D. remain
解析:考查动词词组:A. stay behind呆在后面 B. leave behind留下C. fall behind落后, D. remain behind仍然在后面,句意:如果你没有尽力学习所有的科目,你会落后的。选C。