We believe One Belt，One Road（一带一路） will help China improve the _____ with lots of countries．（ ）
| A． |
population |
B． |
situation |
| C． |
environment |
D． |
relationship |
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