Success often comes to those _______ keep trying their best at everything they do．（ ）
| A． |
whom |
B． |
what |
C． |
which |
D． |
who |
Fighting for your dream is like climbing a mountain． Whatever difficulties you meet， don't _____． Just move on．（ ）
A．set offB．come outC．give up
﹣﹣﹣ Our motherland's 70th birthday is coming．
﹣﹣﹣ Great! We will hold many activities to celebrate it _____．（ ）
| A． |
wisely |
B． |
warmly |
C． |
simply |
To keep our city beautiful， the _____are always very busy in the streets．We shouldn't throw rubbish everywhere．（ ）
| A． |
policemen |
B． |
cleaners |
C． |
drivers |
When we read a piece of news online， we'd better make sure it's _____before sending it to others． If not， we may spread something bad．（ ）
| A． |
true |
B． |
special |
C． |
strange |
﹣Parents should let children _____home and find more about the world．
﹣After all， birds should fly freely in the sky．（ ）
| A． |
leave |
B． |
enter |
C． |
reach |