Helen ________to the party.She had a wonderful time with us.
A. invites B. is invited
C. was invited D. has invited
--- How many girls are there in your class?
--- ________ them __________ over twenty.
A. A number of, are B. The number of, are
C. A number of, is D. The number of, is
He is the writer________won the Nobel(诺贝尔) Literature Prize.
A. which B. whose C. who D. whom
I heard that the new robot ___ last month.You can search the information about it on the Internet.
A. was tested B. is tested
C. tests D. tested
Jim's parents always encourage him ________out his opinions.
A. speak B. speaking C. to speak D. will speak
Great changes________in our hometown in the past five years.
A. have happened B. have taken place
C. have been happened D. have been taken place
