问题

Why not go out to play, Jack— I’m afraid I can’t I have much homework .

A:do
B:does
C:doing
D:to do;

正确答案是：

同类题型

Only those who follow their dreams ____ achieve the final success．

pencil is partly in a glass of water, it looksas if it _______

How was their discussion—Well, their cheerful voice showed that they were having a talk.

_____ on Russian affairs

He ________ into the habit of smoking at the age of 14.