TOM ...VERY THIN WHEN HE WAS YOUNG, BUT NOW HE IS VERY FAT.A WAS...

6/ - HE THONG DE KIEM TRA TRAC NGHIEM 15''''ANH 10 CB 2
HE THONG DE KIEM TRA TRAC NGHIEM 15''''ANH 10 CB 2

6/ Tom ...very thin when he was young, but now he is very fat.

a

was used for being

b

used to be

c

used to

d

use to be