1) C. about $\longrightarrow$ in (be interest in)

2) C. see $\longrightarrow$ seeing (look forward to V_ing)

3) D. next year $\longrightarrow$ the year after (câu tường thuật next $\to$ after/the following)

4) B. such $\longrightarrow$ too

5) C. happly $\longrightarrow$ happily (V + adv)

6) B. where $\longrightarrow$ which (đại từ quan hệ chỉ vật: TV)

7) B. whom $\longrightarrow$ whose (đại từ quan hệ sở hữu chỉ người: the man $\to$ whose wife)

8) C. a $\longrightarrow$ the (so sánh nhất: best)

9) B. were $\longrightarrow$ was (My friend số ít)

10) A. disappointing $\longrightarrow$ disappointed

1.c-about-> in

2.c-see-> seeing 

3.d-nextday ->the following year

4.b-such -> too

5.c-happly -> happily 

6.b- where -> which 

7. b- whom -> whose 

8.c- a -> the 

9.b- were -> was

10. a-disappointing -> disappointed