We __________ have proved great adventurers, but we have done the greatest march ever made in the past ten years.
| A．needn’t | B．may not |
| C．shouldn’t | D．mustn’t |
Find ways to praise your children often, _________ you'll find they will open their hearts to you.
| A．till | B．or | C．and | D．But |
Only when _______ be possible to sign the papers.
| A．does the lawyer come with it | B．the lawyer comes will it |
| C．has the lawyer come it will | D．the lawyer comes it will |
-What has made him in such a low mood recently?
—_________ by his father for not passing the exam.
A Being criticized B. Criticized C.Having criticized D. To criticize
The government _____ air quality in urban areas from level one to five: excellent, fairly good, slightly polluted, poor and dangerous.
| A． arranges | B．classifies | C．distributes | D．divides |
The real-name policy for train tickets has been applied to all trains since January l, 2012 in China,________ will make it easy for people to get tickets.
| A．which | B．when | C．what | D．Where |