China _____ a sharp increase in the number of Social Networking Services users in the past years.
| A．has seen |
| B．saw |
| C．sees |
| D．was seen |
30．The new curriculum advocates allowing students more time to participate in_______is referred to as community service.
| A．that | B．which | C．where | D．What |
29．It is required in a recent study suggesting the importance of teenagers’ communication with other children of the same age.
| A．interfere | B．interferes | C．can interfere | D．is to interfere |
28．—You must be tired after the flight. You’d better take a good rest.
—Yes, I _________. Thank you.
| A．will | B．should | C．may | D．Would |
27．—Oh, how depressed! I am bound to lose to him in tomorrow’s competition.
—Cheer up! In fact, he is___________than you!
| A．not more nervous | B．no more nervous |
| C．no less nervous | D．a little less nervous |
26．—You look quite tired.
—I __________ the project here in order to meet the deadline.
| A．have done | B．did | C．had done | D．have been doing |