Question

I try ________ the exam. I have worked hard.

1. A.
   to worry about
2. B.
   worry about
3. C.
   not to worry about
4. D.
   not worry about

Answer 1

C
精析：動詞try可以用作及物動詞，其后常跟動詞不定式，意為“努力去做……”，try之后接doing sth.作賓語，表示“試著做某事”。如：
Why not try drawing the picture again?“為何不試試再畫一次呢？”
try one's best是固定短語，意為“盡……最大努力”，其意義與do one's best相近。
動詞不定式的否定式是在不定式符號to之前加副詞not來否定。如：
The teacher told the children not to play football in the street.老師告訴孩子們不要在街上踢球。