问题

Some insects take on the color of their surroundings to ________ themselves.

A:pretend;
B:prevent;
C:protect;
D:proceed;

正确答案是：

同类题型

Everyone passed the exam ________him. So he was sad.

What’s _________ , Mary— I have _________.

Her father was too tired_________ too much hard work．

Nowadays _____ mails are used more and more frequently. [ ]

_________ cleans the classroom can go homefirst.