In the last few years thousands of films ____ all over the world.
| A．have produced | B．have been produced |
| C．are producing | D．are being produced |
I am very grateful to my high school teachers, without ______ help I wouldn’t be so excellent.
| A．whom | B．them | C．which | D．whose |
The pop star walked out of the stage, ______ her hands elegantly to her crazy fans.
| A．waving | B．was waving | C．waved | D．to wave |
The group of the aged are close companions, and many of ______ have known each other for decades.
| A．them | B．that | C．whom | D．what |
We are so happy to see that some of the students have already learned enough English to ______ a conversation.
| A．hold on | B．keep on | C．go on | D．carry on |
Amy joined a painting group but didn’t seem to ______, so she left.
| A．show off | B．go up | C．fit in | D．come over |