he help of the new teacher,____number of the students in my class who have made____ great progress inEnglish up to now is far larger

Was it in 1969 _____ the American astronaut succeeded ____ landing on the moon?

Without Sir Tim, the father of the WWW, keeping up with the latest ________ so convenient. [ ]

I’ve read a variety of science fictions, but few of them_____ the one that you lent me yesterday.

Have you found the missing?couple in the mountain ? —No, but we hard to get in touch with them