Betty kept silent at first _______ soon she joined the other girls， chatting and laughing．（ ）
A．soB．butC．orD．because
Don't ride too fast，David． the risk of an accident．（ ）
| A． |
Take away |
B． |
Write about |
| C． |
Think about |
D． |
Try out |
Tom and Jerry are very funny．I can't help when I watch them．（ ）
| A． |
singing |
B． |
laughing |
C． |
sleeping |
D． |
talking |
Lucy is very young， she can live on her own．（ ）
| A． |
and |
B． |
or |
C． |
so |
D． |
but |
I like the silence in the countryside．The city is too for me．（ ）
| A． |
boring |
B． |
large |
C． |
crowded |
D． |
noisy |
It is Sunday．Let's just relax and enjoy ．（ ）
| A． |
myself |
B． |
yourself |
C． |
ourselves |
D． |
Himself |