(16) The bus will get here ( ) a half hour.
1 at 2 in
3 on 4 from 正解
(17) Mary and I ( ) playing tennis yesterday.
1 did 2 was
3 were 4 are 正解
(18) My mother gets up the ( ) in my family.
1 early 2 earlier
3 earliest 4 most early 正解
(19) Is English ( ) in Singapore?
1 speak 2 spoke
3 speaking 4 spoken 正解
(20) Did your brother ( ) his camera at this store?
1 buy 2 bought
3 buys 4 buying 正解