1 . She brought her three friends to the party, none of ________I had ever met before. (用适当的词填空)

2 . Is this reason (________) he explained at the meeting for his carelessness in his work?(写出句子中被省略的部分)

3 . Gone are the days ________ physical strength was all you needed to make a living. (用适当的词填空)

4 . It’s helpful to put children in a situation ________ they can see themselves in different ways. (用适当的词填空)

5 . In ancient China lived an artist ________ paintings were almost lifelike. (用适当的词填空)

6 . Donald survived when the car ________ he was in crashed into a truck from the opposite side.

A．as

B．where

C．that

D．once

7 . Today we have reached a stage ________ we have almost no rights at all. (用适当的词填空)

8 . You can find whatever you need at the shopping Centre, ___________is always busy at the weekend. （用适当的词填空）

9 . 虽然过春节时城市里不准燃放烟花，但人们仍觉得少不了要热闹庆祝一番。(it)

10 . 我的祖父人老心不老，他很幽默，常常会逗乐年轻人。(remain)