None of them knew what happened __________we told them about it.
| A．since | B．after | C．until | D．while |
Tony used to ______ to school ,but he is used to _______ to school now .
A. walk ;taking a bus B. walked ;took a bus C. walk ; take the bus
They have already been to the place ____ their ancestors lived .
A. whichB. whereC. when
---- ____ do you ______ cutting in line ?
- ---It makes me annoyed .
A. What , feel about B. How ; think ofC. How ; feel about
Don’t let the kid do so much housework .He is so young, ______ .
A. thoughB. after allC. at times
Books are made ___paper and paper is made ____ wood .
A. from; ofB. of ; fromC. of ; of