—Do you know _____ the soldiers came to Yingxiu Town?
—The roads were badly broken. They had to walk there.
| A．why | B．when | C．how | D．where |
----- Why not organize a school trip?
---- _________.
| A．Good idea. | B．That’s all right. |
| C．You’re welcome. | D．Never mind. |
Have you decided ___________?
| A．what to go | B．where to go | C．how to go | D．which to go |
Lily’s never been to Hainan, ________ she?
| A．is | B．isn’t | C．has | D．hasn’t |
I think skiing is ____ great fun.
| A．a | B．/ | C．an | D．the |
He fell off the bike ________.
| A．while he rode | B．while he was riding |
| C．while he is riding | D．while on bike |