He tried _____(not fall) behind others.
He tried _____(not fall) behind others.
He tried __ (not fall) behind others.适当形式
He tried( ){not fall} behind others用所给词的适当形式填空.
Tom tried _______ (not fall) behind others.答案 为什么
They are afraid that he may fall behind others.的意思
He doesn not enjoy _____(chat) with others.
U___ you work harder,you will fall behind others.
fall behind
1.He's working hard ____ he should fall behind.
He may fall behind other students when he come back?
He tried his best-[not show]it.
___ ___that he may fall behind the other students.