I really don’t know for certain____ they discussed.this important event very secretly.
| A．where was it that | B．where it was that | C．where that | D．it was where that |
Nowadays sending e-mails to each other is a way many a student _______ what they think.
| A．conveys | B．delivers | C．express | D．account |
I hope they will finish the project in time, but they themselves are very_____ that it will.
| A．certain | B．confident | C．doubtful | D．suspicious |
Model as a career_____ to many young girls because of the fascinating T-stage.
| A．attracts | B．appeals | C．calls | D．pulls |
When will the new driving laws come into________?
| A．use | B．effect | C．service | D．existence |
No one has _____ been able to trace the author of the poem.
| A．still | B．yet | C．already | D．just |