His english is very poor.She must_him
问题描述：
His english is very poor.She must_him
A.try help
B.try to help
C.try to helps
D.try to help
b trying to help
答
D.try to help
语法：must是情态动词+do sth.
try to do sth. 努力/尝试做某事
PS:His english is very poor 中文：他的英语水平很差
希望能帮到你啦!