Scientists say it may be five or six years_______it is possible to test this medicine on human patients

_______ did you ________the summer vacation ——- It was terrible . I have too much homework to do .

So involved with computers ____ that theleaders at the summer computer camps often had to force them to break forsports

sit to the memorial of Jiaoyulu, a late model official who worked in Lankao in the 1960s was a _____ of Secretary Xi’s trip.

At our school, we have to _______ uniformsevery day.–So do we.