Chọn đáp án đúng nhất và giải thích:
1.I don't book the seats in advance.I regret because of this now.
A.I wish I book the seats in advance
B.I wish I have booked the seats in advance
C.If only I booked the seats in advance
D If only I had booked the seats in advance
2.We arrived at the cinema.Then we realized our tickets were still at home.
A.No sooner had we realized that our tickets were still at home than we arrived at the cinema.
B.Not until we arrived at the cinema that we realized that our tickets were still at home
C.Only after we arrived at the cinema did we realize that our tickets were at home
D.Hardly had we arrived at the cinema than we realized that our tickets were still at home