__ surprised me most was ___ Mary spoke Chinese just like a native speaker.
21.Here’s one of the best ways to protect your skin—_____ too much sunshine.
20.There used__________a post office at the corner of the street.
19.It is ________ who ____________ wrong.
18. He urged us to _____ this splendid opportunity to develop our movie industry.
17. I like _____ in the autumn when the weather is clear and bright.A this B. that C. it D. One