问题

Has your friend completed his design? – Not yet. He ________ on it last night.
A:worked
B:has worked
C:is working
D:was working
B:has worked
C:is working
D:was working
正确答案是:
同类题型
Eight ________ students in our school are from countryside.
What’s the weather like France ?[ ]
You should _____ some English every day. It’s good for your vocabulary.
Daniel is my friend. I like sharing my _________ with him when I am happy.
Dad, will you buy me a new bike? –I don’t know. I’ll have to _________ it.