Câu trả lời:
1 on
2 in
3 for
4 In
5 with
6 since
7 for
8 on - for
9 in
1 on
2 in
3 for
4 In
5 with
6 since
7 for
8 on - for
9 in
4P+5O2→2P2O5.
where his teddy ? His teddy is in his bedroom
70 nhé bạn
c.
c,
2
6 A
7 C
8 A
9 A
10 D
11 A
12 A
13 D
14 D
15 A
16 C
17 B
18 B
19 D
20 C