6．－How did the robber get in?
－ an open window on the first floor.
| A．Across | B．From | C．Over | D．Through |
________ will be in charge of the project______ been decided yet.
| A．Whoever; haven’t | B．Which; hasn’t |
| C．Who; hasn’t | D．Whichever; haven’t |
______worried the child most was _____ to visit his mother in the hospital.
| A．What; his not allowing | B．What ; his not being allowed |
| C．Which; his being not allowed | D．That; not having been allowed |
We shouldn’t complain about________, because many families are much _____ in the mountainous area.
| A．being poor; worse off | B．being rich; better off |
| C．to be poor; badly off | D．to be rich; well off |
All the machines stopped _____ with the electricity _____ throughout the factory.
| A．working; cut through | B．to work; cut down |
| C．working; cut off | D．to work; cut up |
You should try to get a good night’s sleep ________ much work you have to do.
| A．whichever | B．whenever | C．however | D．whatever |