---How many employees are there in the company? ---We have       500 people working there.

 __ will be good for you to spend one hour exercising outdoors every day.

This pen doesn't look like ______. ______pen has been lent to Xiao Wang. I think it must be______.

—Have you got any books on English grammar? I’d like to borrow       ． —Yes, here you are．But you must return it by Friday．

___ of the students in my class can arrive on time because of the sudden heavy rain .