49. He goes _____ at 8 a.m. and comes _____ at 5 p.m. Today he is _____.
| A．on duty; off duty; on night duty | B．on his duty; off the duty; on night duty |
| C．to duty; from duty; at night duty | D．in duty; out duty; at night duty |
We are supposed to __________newspapers, magazines and other related books when writing a report.
| A．refer to | B．look up to | C．look forward to | D．see to |
The, __________at 7：30 pm last night, was followed by a brief dinner.
| A．started | B．to be started | C．to start | D．starting |
Taking notes is important in class, but it is not necessary to __________every word the teacher says.
| A．put away | B．put out | C．put down | D．put together |
—Could you buy me the latest TEENS Senior 2 Edition?
—__________after I finish my lunch?
| A．What for | B．What if | C．What about | D．What |
—Excuse me, where is Johnson?
—He cannot go home, as his book is lying __________on his desk.
| A．openly | B．opening | C．opened | D．open |