are you doing here，baby？You must go to bed.It's late.
A．WhatB．WhoC．WhenD．Where
Could you please tell me ________？
For two weeks．（ ）
A．how soon he will be back
B．how long he will be away
C．how long will he be away．
We'll achieve our dreams some day ______ we keep trying and never give up．（ ）
A．as long asB．even though
C．so that
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