Mr. Smith is busy these days ________ a new book on how to develop a child’s reading skill.
| A．working out | B．working on | C．working for | D．working with |
The chickens will provide us _______ feathers, ______ we can make use for cleaning the table and benches.
| A．with; with |
| B．with; of which |
| C．of; which |
| D．of; from which |
The pills really work! I __________ 7 kilograms in the last two months!
| A．lose | B．lost | C．am losing | D．have lost |
Three of the town’s factories have closed down _____ the space of a year.
| A．among | B．after | C．beyond | D．within |
____, he does not know the answer.
| A．As he is a teacher | B．As he is teacher |
| C．A teacher as he is | D．Teacher as he is |
---Do you know what Tom does all day?
---I know he spends at least _______ time watching TV as he does spend doing his lessons.
| A．more | B．as much | C．much | D．as more |