According to a recent survey，______three fifths of working mothers in china don't want to have a second child．（ ）
| A． |
mostly |
B． |
especially |
C． |
partly |
D． |
nearly |
Uncle Liang ________ in Haikou since 1980，so he knows a lot about the city．（ ）
| A． |
is living |
B． |
has lived |
C． |
lived |
Who will you ask to help with the work，Lucy or Lily？﹣Lily．She is much ________．（ ）
| A． |
careful |
B． |
more careful |
C． |
most careful |
Must I clean the room now？
No，you ________．You can do it later．（ ）
| A． |
needn't |
B． |
can't |
C． |
may not |
There's little ________ left at home．Go and buy some，dear．（ ）
| A． |
carrots |
B． |
potatoes |
C． |
rice |
How long can I keep this dictionary？
Two weeks．You must ________ it on time．（ ）
| A． |
collect |
B． |
call |
C． |
return |