Unit 4 Inventions and Inventors
5. she asked them things about.
a. not to litter b. don’t litter c. not litter d. no litter
6. i’m not sure he will come back home tomorrow or not.
a. when b. what c. whether d. where
7. look. these be dinosaur eggs because they are the biggest of all.
a. must b. can c. should d. may
8. –i was told to take umbrella with me.
--oh, no. look at the sky. it’s sunny and rain.
a. must b. can’t c. may d. needn’t
9. the light in the office is off. the teacher be there now.
a. may b. can’t c. mustn’t d. must
10. this kind of sweater is made cotton.
a. by b. with c. of d. from
ii. 完成句子：
1. 警察阻止孩子們在街上玩耍。
the policeman stopped the children in the street.
2. 去年他去日本學醫。
last year, he went to japan .