—Hey, man. You can’t cross the street now. You have to wait ______ the traffic turn green.
—Oh, sorry and thank you.
| A．when | B．after | C．until | D．while |
I think _______ is meaningful to help other people.
| A．it | B．this | C．that | D．/ |
Great changes _______ in our country since 1990.
| A．were taken place | B．took place |
| C．have taken place | D．have been taken place |
－ Have you seen the film Kongfu Panda?
－ No. but some of my friends _______.
| A．are | B．have | C．do | D．will |
She was the eldest _______ the three girls.
| A．in | B．between | C．with | D．among |
－ How long _______ home?
－For about three months.
| A．have you been away from | B．did you leave |
| C．have you left | D．are you away from |