－How long have you been at home?
－Half an hour. My son _________ me home.
| A．would drive | B．had driven | C．has been driving | D．drove |
It is _____ that Professor Smith will give us a lecture tomorrow.
| A．possibly | B．probably | C．likely | D．maybe |
_______ his research, man can set foot on the moon now.
| A．Because | B．Thanks to | C．So as to | D．In addition to |
The rest of the apple _________.
| A．were throwing away | B．was throwing away |
| C．were thrown away | D．was thrown away |
Only when his mother arrived ___________.
| A．the boy stopped crying | B．stopped the boy crying |
| C．the boy did stop crying | D．did the boy stop crying |
–Do you know the ____ woman by the chairman?
--Yes. But could you introduce to me the man _____ by the reporters?
| A．smiling; questioned | B．smiled; questioning |
| C．being smiled; questioned | D．to smile; to question |