问题

In Beijing,you can see many people wear masks(口罩) if they _______ out on foggy days.
A:went
B:go
C:are going
D:will go;
B:go
C:are going
D:will go;
正确答案是:
同类题型
.— My sister has achieved her goal after years of hard work. —Great! ____________
The last half of the nineteenth century _____ the steady improvement in the meansof travel
Look! Is that Mr. Green—It beMr. Green. He has gone to Shanghai.
I cannot hear the professor clearly as there is too much noise _____ I am sitting.