IV
1 A to go -> going ( suggest + Ving )
2 D is -> was ( used to: đã từng nên ở quá khứ )
3 B likes -> liked ( trần thuật nên lùi thì )
4 C beautiful -> beautifully ( sau "sing" là trạng từ )
5 B will become -> would become ( câu "wish" phải lùi thì )
V
1 I wish I had my racket here.
2 I suggest going out for a milk.
-> Why don't we + Vinf = suggest + Ving
3 He said that my mother would have a party with her friends that night.
VII
1 He used to be taken to the zoo by his parents when he was young.
2 He spent 2 hours painting that picture yesterday.