______teenagers are becoming the "Head﹣down Tribe"（低头族）． It's bad．（ ）
| A． |
Too many； much too |
B． |
Too much； too much |
| C． |
Much too； too much |
D． |
Too many； too much |
This photo makes me think of trip to the Great Wall last year．
Yeah，we had a great time there．（ ）
A．aB．anC．theD．/
______ the light，please．This is a room with enough natural light．（ ）
A．Turn offB．Turn onC．Turn down
The singer________ while still at school（ ）
A．has discoveredB．was discovered
C．discovered
Thomas is the________ player in the basketball team but he is the best．（ ）
A．shorterB．shortC．shortest
The man________ called yesterday wants to buy the house．（ ）
A．whoB．whatC．which