The development of industry has been ________ gradual process throughout ______ human existence from stone tools to modern technology.
| A．不填；the | B．the; a | C．a; 不填 | D．a; a |
—Do you have _____ trouble finishing the work?
—The work is not so difficult as you think． We have finished it already．
| A．much | B．any | C．some | D．no |
I simply couldn’t understand how it _____ that you did so much work within such a short time．
| A．came about | B．came back | C．came up | D．came along |
I don’t think she will come to the meeting on time, ______?
| A．do I | B．do you | C．will she | D．won’t she |
—Could I speak to Miss Smith, please?
—______． She’s gone to the post office．
| A．I’m afraid not | B．I think so | C．Certainly you can. | D．I’m not sure． |
Two more people in Shanghai have been ________ to be infected with the deadly H7N9 bird flu, local authorities said on Sunday.
| A．conducted | B．convinced | C．condemned | D．confirmed |