He is wearing sunglasses to       his eyes from the strong sunlight.

----There is only three days lef,but we still have a pile of papers to deal with.---- Don’t worry. We have already______ two thirds of them after all

. I thought of him as my best friend until he ______ to the boss.

It is reported that the number of students_______ computer games has been on the increase in recent years.

The little boy was so careless with his spelling that she often_____ letters from words.