he is very busy, he spends at leasttwo hours every day surfing the Internet in order to find out the latestdevelopment in science and technology

Excuse me, can I have a talk with Mr. Miller this afternoon ––– A moment, please. Let me check_______.

What do you often do _____ classes to relax yourselves–We often do eye exercises ,listen to music or do some running around the school.

It was said that the lost plane had possibly landed on_______ island.- Do you believe_______ news

____ from space, our earth, with water covering 70% of its surface, appears as a “blue planet”[ ]