1.i don't think there will be robots.
2.will jim live in shanghai in ten year?
3.if you don't stand higher,you won't see farther .
4.she said she was mad at peter.
5.when will he see me you?
6.how long have you studied
7.i came here two years ago.
8.they have listened to me and come in .
9.the nurses are good at taking care of sick people.
10.i haven't been to macau before .
11.why hasn't he come to school?
12.how long has he learned english
13.it's three years since we began to learn english .
14.i have just bought a new bike.