--Boys and girls , wait for a moment !
--OK. We can’t cross the street ________the traffic lights are green.
| A．until | B．after | C．while | D．for |
There is ____ “f” and ___ “d” in the word “friend”.
| A．a; an | B．a; a | C．an; an | D．an; a |
_______your father and mother both teachers?
| A．Am | B．are | C．Is | D．Are |
______ is your father ? ---He’s a driver.
| A．What | B．That | C．Who | D．How |
________ climb the mountains（山）.
| A．Not | B．Don’t | C．Not do | D．Doesn’t |
—Where’s Mary? —She’s ________ the classroom.
| A．in front of | B．between | C．in middle of | D．under |