. John has put on so much weight recently that his mother has to ______ all his trousers to his measure.
| A．let out | B．give away | C．bring in | D．make up |
The way of life he was used to _______ when he came to study in America.
| A．change | B．changed | C．changing | D．being changed |
He said that we should protect the ancient civilization from _______.
| A．losing | B．lost | C．being lost | D．to lose |
She told us what she bought yesterday ________ a few apples and some clothing.
| A．is | B．are | C．was | D．were |
Do you know that Yuan Longping is known as ______ father of hybrid rice (杂交水稻)?
| A．/ | B．the | C．a | D．an |
He didn’t come to school yesterday _______ that he was ill.
| A．because | B．for | C．in | D．if |