So small ________ that they don’t admit much light at all．
| A．the windows are | B．are the windows |
| C．the window is | D．is the window |
The River Nile ___ flood large areas, but now the water of it ___ produce electricity.
| A．was used to ; is used to | B．used to; used to | C．used to; is used to | D．was used; is using |
We learned a lot from her father, an engineer ___ does research ___ science.
| A．that; into | B．whom; on | C．who; into | D．which ; on |
You should make a careful plan ___ the experiment.
| A．before to do | B．before doing | C．after to do | D．after doing |
Here’s my card, let’s keep in ___.
| A．touch | B．relation | C．connection | D．friendship |
I don’t know the restaurant, but it’s __ to be quite a good one.
| A．said | B．told | C．spoken | D．talked |