1、 The teacher told her students that light __________ faster than sound.( )

2、 The investor will buy shares in the club the chairman raised the price.( )

3、 The doctor is the only person who will really help you. , he will even treat you free of charge.( )

4、 While Sarah ______ her presentation, the projector stopped working.( )

5、 With all the assignments ______, the students finally relaxed.( )

6、 If you don’t hurry, the train ______ before we reach the station.( )

7、 He finally visited the city ______ his grandparents had lived for decades.( )

8、 She was willing to ______ the challenge of running a marathon for the first time.( )

9、 The question ______ humans can live on Mars remains unanswered.

10、 ______ was through the monitor ______ I learned the news.