问题

Shall we go out for a walk?—Sorry, I can’t. I _______ my homework.
A:do
B:did
C:am doing
D:was doing
B:did
C:am doing
D:was doing
正确答案是:
同类题型
What will Jack do on vacation? — He’ll go to Disneyland if he _________ enough time.
Han Han is a popular writer. His new book will ______ this September.
Do you take exercise every day? —-Yes. I always thirty minutes after supper.
Why are you often dressed in white?— Because I think white can help me_______ when I feel stressed.