______ all the activities, I think diving is _____ one.
| A．Of; a dangerous | B．In; most dangerous |
| C．Of; the most dangerous | D．In; the most dangerous |
--- Were you at home at 9:00 pm yesterday?
--- Yes, I for a call from Paris at that time.
| A．was waiting | B．am waiting |
| C．will wait | D．waited |
I was surfing the Internet my brother was doing his homework.
| A．after | B．because | C．while | D．when |
There is with my computer, so I can’t finish the work on time today.
| A．wrong anything | B．wrong something |
| C．something wrong | D．nothing wrong |
I ____my school ID card at home. May I go home and get it?
| A．forgot | B．remembered |
| C．left | D．missed |
____________ Davy called me, I was sleeping.
| A．Until | B．When | C．While | D．Because |