It is well-known ______ a person, especially the old, eats too much he’ll feel uncomfortable

Thirty computers have been sent to the school some other new teaching equipment

A makes a lot of excuses inan attempt to make war on Iran , however, Its __________ purpose lies in theabundant oil there

What ______ can I do for you —Thank you, but I can finish it myself.

The fact __________she hasn’t know the result of the examination is a great surprise to me.