________ clever dog Lucky is! It can understand Mr． Smith's orders．（ ）
| A． |
What |
B． |
What a |
C． |
How |
D． |
How a |
________ clever dog Lucky is! It can understand Mr． Smith's orders．（ ）
| A． |
What |
B． |
What a |
C． |
How |
D． |
How a |
We Chinese ________ by the touching documentary Amazing China．（ ）
| A． |
encourage |
B． |
encourages |
| C． |
are encouraged |
D． |
are encouraging |
My little brother is a tidy boy． He always keeps his room ________．（ ）
| A． |
clean |
B． |
to clean |
C． |
cleaning |
D． |
cleaned |
Lucy， do you want to join the art club or the chess club？
________． I like drawing pictures．（ ）
| A． |
Yes， I do |
B． |
The art club |
| C． |
No， I don't |
D． |
The chess club |
The sky is much bluer ________ we have taken action to protect the environment．（ ）
| A． |
because |
B． |
before |
C． |
until |
D． |
unless |