There are many tall buildings on ____ sides of the street .
| A．each | B．every | C．both | D．either |
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 |
When did your father ____ your mother?
| A．marry | B．marry to | C．marry with | D．get married |