TIM ... GO FISHING WITH HIS FATHER WHEN HE WAS YOUNG.A. USED TOB....

18. - 3500 CAU TRAC NGHIEM ON TAP AV THCS
3500 CAU TRAC NGHIEM ON TAP AV THCS

18. Tim ... go fishing with his father when he was young.

a. used to

b. is used to

c. has used to

d. was used to

 a