All we are required to do ______ record a "weike" where we explain what we think students are puzzled about．
| A．are | B．is | C．was | D．were |
As _____ announced in today's papers, the Shanghai Export Commoditiser Fair is also openon Sunday.
| A．being | B．is | C．to be | D．been |
–It must have been lots of fun riding round in a car.
–Yes, you know this was the first time that _____ round in my own car.
| A．I rode | B．I should have ridden |
| C．I’ve been riding | D．I’d ridden |
Until then, his family _____ from him for six months.
| A．didn't hear | B．hasn't been hearing |
| C．hasn't heard | D．hadn't heard |
It's reported that by the end of this month the output of cement in the factory _____ by about 10%.
| A．will have risen | B．has risen | C．has been risen | D．will be rising |
Active reading will result in a better understanding of what _____.
| A．is being read | B．to be read | C．to read | D．being read |