Don't throw rubbish everywhere，please．Building a civilized（文明的）city is our duty．
_______．（ ）
| A． |
OK，I will |
B． |
You are joking |
| C． |
Take it easy |
D． |
Sorry，I won't |
Shared bikes，which are environmentally friendly，______ quite popular among big cities in China since last April．（ ）
A．becameB．have become
C．will become
Philips，______ you make so much noise when your little sister is sleeping？
Sorry，Mum．I'll stop right away．（ ）
A．canB．mayC．must
Not only my parents but also my sister ______ crazy about the TV play in the name of people．（ ）
A．isB．areC．have been
Is there anybody who can lend me a hand？
I'm afraid not．You know，you're supposed to depend on ______．（ ）
A．myselfB．yourselfC．themselves
______ carefully，please! Look at the road sign．There is a school ahead．（ ）
A．DriveB．To driveC．Driving