Love your parents __________ they are alive． Don't wait until it is too late．（ ）
A．whileB．thoughC．becauseD．unless
The river near our village is about long．（ ）
| A． |
three﹣hundreds﹣meters |
| B． |
three﹣hundred﹣meter |
| C． |
three﹣hundred﹣meters |
| D． |
three hundred meters |
Sorry，I _______my homework at home．Can I bring it tomorrow？
Ok，I'll wait until tomorrow．（ ）
| A． |
have forgotten |
B． |
put |
| C． |
have left |
D． |
forgot to leave |
What did you say just now？
I asked____________．（ ）
| A． |
that I could open the door |
| B． |
could I open the door |
| C． |
how could I open the door |
| D． |
if I could open the door |
How many women doctors are there in your hospital?
___________ them _________over thirty．（ ）
| A． |
A number of；are |
B． |
The number of；are |
| C． |
The number of；is |
D． |
A number of；is |
He can take the book away as long as he_________ it．（ ）
| A． |
like |
B． |
likes |
C． |
liking |
D． |
liked |