從A、B、C、D四個選項中,選出可以填入空白處的最佳選項,并在答題卡上將該項涂黑。
21. This is Mrs. Brown, ________ teacher from Australia working at ________ university in our country.
A. a; a B. a; an C. the; an D. a; /
22. -- Personally, making a joyful face not only helps us make friends but also makes us feel better.
-- ________.
A. I’d love to B. It’s up to you
C. I’m with you on that D. It’s my pleasure