Pass me the dictionary， please． I want to __________ some new words．
A．look forB．look up
C．look afterD．look through
Robert is _____ so that he even has no time to stay with his children at weekends．（ ）
A．busyB．smartC．seriousD．pleased
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