—I’d like to invite you to my birthday party this evening.
—Thanks, but ____ I’ll have time I’m not sure at the moment.
| A．while | B．whether | C．if | D．when |
Another primary school is reported _______ for children in Wen Chuan now.
| A．to have been built | B．to have built |
| C．being built | D．to be building |
The citizens of Beijing are proud of _______ they have done to make Beijing a beautiful city.
| A．that | B．which | C．what | D．how |
. 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 |