I ___________ in the street when I met an old friend of mine yesterday.
| A．walked | B．was walking | C．has walked | D．had walked |
Every boy and every girl as well as some teachers who __________ to visit the museum __________ asked to be at the school gate before 6:00 in the morning.
| A．are; are | B．is; is |
| C．is; are | D．are; is |
More than one student __________ absent. The number of students present __________56.
| A．are; is | B．is; are |
| C．is; is | D．are; are |
Large quantities of water, as well as some other timely help，__________ since the serious drought hit Yunnan Province.
| A．has offered | B．have offered |
| C．have been offered | D．has been offered |
Above one third of the population in Beijing and Shanghai __________ netizens, but in poor areas, only three or four percent __________ online.
| A．is; is | B．are; are |
| C．is; are | D．are; is |
The factory used 65 percent of the raw materials, the rest of which __________ saved for other purposes.
| A．is | B．are |
| C．was | D．were |