My little brother didn't go to bed until he finished ________ his homework last night．（ ）
A．doB．doingC．to do
Please be quiet! Your little brother in the bedroom now．（ ）
| A． |
slept |
B． |
sleeps |
| C． |
is sleeping |
D． |
will sleep |
Nowadays people wish to eat______food than before to keep fit．（ ）
| A． |
healthy |
B． |
healthier |
| C． |
healthiest |
D． |
the healthiest |
There are tourists visiting the Great Wall on May Day every year．（ ）
| A． |
two thousands of |
B． |
two thousands |
| C． |
thousands of |
D． |
thousand of |
Mrs．Green showed the boys how to do things like a gentleman at the dinner table．（ ）
| A． |
happily |
B． |
bravely |
| C． |
differently |
D． |
politely |
Must I wash the dishes right now？
No， you ．（ ）
| A． |
needn't |
B． |
wouldn't |
C． |
mustn't |
D． |
for |