The Parkers bought a new house but ______ will need a lot of work before they can move in.
| A．they | B．it | C．one | D．which |
Have you any idea ______we can do to help those ______are in great need?
| A．how; who | B．what; / | C．whether; that | D．what; who |
_______ Tom, we wouldn’t have been late for the last bus.
| A．If we didn’t wait for | B．If we haven’t waited for |
| C．we hadn’t waited for | D．Had we not waited for |
The twin brothers stand under the tree, ______ and say nothing.
| A．puzzled | B．puzzling | C．being puzzling | D．being puzzled |
________ that I was puzzled.
| A．So difficult a question did he ask me |
| B．Such difficult a question did he ask me |
| C．Such a difficult question he asked me |
| D．He asked me a so difficult question |
The factory, including its machines and buildings, ______ burnt to ashes during the fire.
| A．is | B．are | C．was | D．were |