She can't help ______ the house because she's busy making a cake.
| A．to clean | B．cleaning | C．cleaned | D．being cleaned |
“We didn’t see him at the lecture yesterday.” “He ______ it.”
a. mustn’t attend b. cannot have attended
c. would have not attended d. needn’t have attended
I ______ go to bed until I ______ finished my work.
a. don’t/had b. didn’t/have c. didn’t/had d. don’t/have
In the past 30 years China ______ great advances in the socialist revolution and socialist construction.
a. has made b. have made c. had made d. having made
.When he was at school, he ______ early and take a walk before breakfast.
a. will rise b. shall rise c. should rise d. would rise
If it is fine tomorrow, we ______ a football match.
a. have b. will have c. has d. shall has