They thought __________ important to look right and left when ________ the road.
| A．it’s; cross | B．it; to cross |
| C．it; crossing | D．it was; to cross |
Yuan Longping, a great person in China, _____as “father of hybrid rice”
| A．is regarded | B．has regarded | C．is regarding | D．regards |
______ the work is difficult, all the workers are keeping on working .
| A．But | B．Although | C．And | D．So |
Tom often makes his brother___but yesterday he was made___ by his brother.
| A．cry; to cry | B．to cry; cry | C．cry; cry | D．to cry; to cry |
---May we go home mow ?
--- No, you____. You____ to go home until 5 o’clock.
| A．mustn’t; are allowed | B．don’t have to; are supposed |
| C．needn’t; aren’t allowed | D．can’t; aren’t supposed |
He _____in Xinxiang for five years when I heard his news.
| A．has lived | B．had lived | C．is living | D．has been lived |