Question

1)Be careful,_______ many mistakes in your composition.

Answer 1

1.D 两句话之间没有连接词,所以后一句用非谓语的形式.

有连接词的情况：Be careful and don't make mistakes in your compostition.

2.A / B

him 与后面的sit 为主动关系所以用 siting 而 seat 一般用法都为 seated

3.B

eyes 与 fix 为被动关系

find 后面带的宾补有很多比如：

I find the book useful.

I find a boy crying in the street.

I find the story a puzzle.等等.