1.Do you want____ a teacher when you are old?
A.be B.become C.to be D.being
2.Go____the road and Jim's house is____your right.
A.along,at B.down,on C.up,in D.along,of
3.We will arrive____Shanghai next week.
A.to B.in C.at D.on
补全单词：
1.Go on u____ you reach the end.
2.She often takes a walk a____ the river after supper.