如果你怕黑,你就开着灯睡觉.
,you can sleep with the light on.
You should choose (明智地) how you spend your spare time.
Alan becomes very (强壮的)after.
A good friend is always a good (听者)
China has sent Tianshou I into space successfully!
What (激动人心的) news!
The book explains grammars (简单) and clearly.