B. 12, 96 tấn
= 1500 kg
2019 × 50 × 2
= 2019 × 100
= 201900
A. I'd like a hamburger, please.
Trả lời :
1 A
2 A
3 B
4 C
5 A
6 B
7 C
8 C
9 A
10 B
D. bamboo
A. Mía