great progress it has made since Hong Kong returned to China in 1997.
#65921
A
Which
B
What
C
How
D
Whether
推荐题目
Be sure to be here early tomorrow, _____? 
#66321
A
will you
B
aren’t you
C
can you
D
could you
—I’m leaving now. —________ you turn off the lights and the computer.
#59400
A
To make sure
B
Make sure
C
Made sure
D
Making sure
______ wake up your sister, Ben. She needs a good sleep.
#59354
A
Don’t
B
Doesn’t
C
Aren’t
D
Can’t