22. One learns a language by making mistakes and ______ them.
| A．correct | B．corrects | C．correcting | D．to correct |
Some parts in South China have experienced ______ this year as they did last year.
| A．twice as much rain | B．rain twice as much |
| C．as twice much rain | D．twice rain as much |
My brother is on a special _______ to lose ________weight.
| A．food; / | B．food; his |
| C．diet; / | D．diet; his |
She _______down her book and ________in bed.
| A．lay; laid | B．laid; lay |
| C．lay; lay | D．laid; laid |
There is little time left, so the chairman asked me to __my speech to 20 minutes.
| A．make | B．give | C．limit | D．explain |
Great changes _______ in his hometown in the last twenty years.
| A．were taken place | B．have taken place |
| C．have been taken place | D．took place |