Although he has failed many times, he keeps _____ hard to make his dream come true.
A. working
B. to work
C. worked
The documentary Under the Dome by Chai Jing tells us to do ______ to stop ______ our environment.
| A．something, polluting | B．anything, to pollute |
| C．everything, to pollute | D．nothing, polluting |
The little baby has a ______ eating nuts because he has no teeth.
| A．question | B．problem |
| C．difficult | D．trouble |
Nowadays, people like to discuss if young couples need ______ second child.
| A．/ | B．an | C．the | D．a |
—I don’t understand_________.
—I’m sorry. But I was doing my homework at that time.
| A．why you didn’t watch the football match |
| B．why didn’t you watch the football match |
| C．why you don’t watch the football match. |
| D．why don't you watch the football match |
The park is far away from here indeed it’s about_______walk
| A．three hour | B．a three hour’s |
| C．a three-hours | D．a three-hour |