________it is，the boy never seems to be able to finish it off.
| A．However interesting a book |
| B．Whatever interesting a book |
| C．How interesting a book |
| D．What an interesting book |
Mary cares about clothes too much, and she _____ too much money _____ clothes.
| A．spend; in | B．cost; at | C．pays; to | D．spends; on |
"_____ of them are not here." means "_____ of them are not here."
| A．All; Some | B．Both; Every | C．Both; Neither | D．All; Both |
We must do something to _____ factories _____waste water into the river before it is cleaned.
| A．stop; pouring . | B．prevent; to pour | C．keep; pouring | D．stop; to pour |
What way are you thinking of _____ rid of the flies?
| A．to get | B．getting | C．being got | D．to be getting |
Jack is a good friend _____, he often comes to our home for a visit.
| A．of my father | B．of my father's | C．for my father | D．with my father |