18、—Did you _____ the windows before buying the curtains?

—Yes, three feet by four.

A．weigh          B．deliver           C．remove          D．measure

17、There were very few moments _____ Mr. Smith couldn't give us lessons because of ill health.

A．that       B．which      C．when          D．where

16、So pleased with our computers _____ that he at once made an order for 1,000.

A．Bill felt                                 B．did Bill feel

C．Bill did feel                           D．felt Bill

15、The Turners are supposed _____ for New Zealand last week.

A．to have left                                     B．to be leaving

C．to leave                                       D．to have been left

14、Finding no students in the lecture hall, Prof．Flynn realized that he came ______ early.

A．very            B．much          C．too               D．far

13、I had not been waiting very long _____ he returned from the conference in the town.

A．until     B．after            C．while          D．before

12、—Joan _____ a month's vacation.

—That's nice．If time permits, I will go with her.

A．is taking           B．was taking          C．has taken          D．took

11、By using the air ambulance to transport patients _____ hospitals, they can win more time for serious cases.

A．inside            B．during         C．through             D．between

9、           by his friends and relatives，he decided to file his invention with the patent office to get recognition for his successful idea．

A．Having pressed         B．Being pressed        C．To be pressed       D．Pressed