________ all the homework assigned by the school, the students have to work at it till midnight.
| A．Completing | B．To complete |
| C．Having completed | D．To have completed |
It’s reported that ________ young ____ to be rebellious against ____ parents’ instructions nowadays.
| A．/, tends, his | B．the , tend, their | C．the , tend, his | D．a, tend, his |
It was__ he said__ disappointed me.
| A．that；what | B．what；that | C．what；what | D．that；that |
If you want to do the experiment again, you had better be more careful_______ you made a mistake.
| A．when | B．why | C．where | D．that |
------ He should have been warned of the danger.
------_________, but he wouldn’t listen to me.
| A．So he was | B．So was he | C．So should he | D．So he should |
______ a mobile phone can you ring _____ you want to talk with anywhere.
| A．Using, whoever | B．Only on, whomever |
| C．By , whomever | D．Not only with, whoever |