Experts say walking is one of the best ways for a person to _____ healthy.
| A．preserve | B．stay | C．maintain | D．reserve |
With winter _______ on, it's time to buy warm clothes.
| A．came | B．comes | C．come | D．coming |
Deeply _______, I thanked her again and again.
| A．being moving | B．moved | C．moving | D．to be moved |
_______ how to do the homework, I went to ask my teacher for help.
| A．Not to know | B．Not knowing | C．Knowing not | D．Not known |
I’ve never heard the word _______ in spoken English.
| A．use | B．used | C．using | D．useing |
.The result of the test was rather _______.
| A．disappointed | B．disappointing | C．being disappointed | D．disappoint |