I have a good friend. _____ name is Jim.
Mr. Li told us we were going to have a math exam ______ Thursday morning. [ ]
Why haven’t you asked her to come here?— She _______ an important experiment when I found her and she _______ it.
It ______ the workers about 20 months to build the Huhang highspeed railway.
There are ______________ birds there in the sky.