Bài 9 :
1.busier / harder
2.more crowded / longer
3.higher / more
4.more convenient / easier
5.louder / more difficult
Bài 10:
1.carry out
2.come down with
3.hang out with
4.get around
5.find out
6.take care of
7.cutting down on
8.hand down
IX
1 busier - harder
2 more crowded - longer
3 higher - more
4 more convenient - easier
5 louder - more difficult
X
1 carry out
2 come down with
3 hang out with
4 get around
5 find out
6 take care of
7 cut down on
8 hand down