8, C - false (false teeth: răng giả)
9, D - had been searched/ were found
10, A - awarded (to be awarded with sth: được trao thưởng cái gì)
11, B - Prior to (Trước đó)
12, C - he wear (suggest + that + S + V- nguyên thể +O)
13, C - will have gone
14, D - led to (lead to: dẫn đến)
15, B - worn out (bị mòn, bị rách)
16, C - Had it not been for (Had it not been for sth: Nếu như không phải vì…)
17, D - get my teeth taken care of
18, A - reminds (remind of sth: gợi nhớ về điều gì)
19, D - will be built
20, D - Well, you did, so it’s no use crying over spilt milk.
21, C - stone’s throw (=very close: rất gần)
