问题

Has your friend completed his design– Not yet. He ________ on it last night.
A:worked
B:was working
C:has worked
D:is working;
B:was working
C:has worked
D:is working;
正确答案是:
同类题型
Do you think the English class _______ –No, we all like it.
The poor man, ______, ran out of the dark cave.
Teacher’s words and deeds______a great effect________their students.[ ]
.____that I’m feeling all right,my brain is also beginning to work much better.
You must be surprised andexcited to see the film star here.— You’re right_____.[ ]