Tom sat under a tree and seeing his friend, ___ up in no time.
| A．to stand | B．standing | C．stood | D．would stand |
Children need to feel ______ in order to do well at school.
| A．secure | B．fun | C．popular | D．threatened |
In the past few years, so many areas throughout the world have been hit by such destructive earthquakes, snowstorms and tsunamis ______ we have never experienced before, ______ makes us worried a lot about nature disasters.
A. A. that; that B. as; which C. which; it D. when; as
The computer is absolutely ______ amazing technological revolution. Just imagine what ______ fun it is playing computer games over the weekend!
| A．the; the | B．an; 不填 | C．不填；a | D．an; a |
The purpose of the new plan is to make life easier, ______ it more difficult.
| A．not make | B．not to make | C．not making | D．do not make |
There wastimethis kind of skirt was very popular.
| A．a; that | B．a; when | C．the; that | D．the; when |