_Bạch Nguyệt Dương
III.
1.
1. am not
2. bought
3. didn't know
4. didn't have
5. was
II.
1. Be quiet.(Shut up!!)
2. Nam go outside and play sports now!
3. Try harder if you had tried hard, nothing is enough.
III.
1. have learned
2. has played
3. hasn't rained
4. haven't seen
5. have studied