英语同义句转换1.people use computers widely in the worlld computers

英语同义句转换
1.people use computers widely in the worlld
computers ___ widely ___in the world
2. everyone should give back his library books on times.
library books should _____ _____ on time
3.there were not any telephone calls made in English between the two countries years ago.
____ _____the telephone calls ____ ___ in English ___the two counties years ago.
4.we must keep the nise under 50 dBs here.
the noise must ___ ___ under 50 dBs here
5.people there didn't plant any trees last year.
___trees ____ ____ by people there last year
6.we will build a big museum in our city next year
A big museum ___ ____ ____ in our city next year
7.people use knives for cutting things
knives ____ ___ for cutting things
8.they may plant fruit trees on the hill nxet spring
fruit trees may ___ ___ in the hill next speing