To tell you the truth, if it were not for the fact that you ________ my daughter, I would not take such pains to serve you.
| A．were | B．have been | C．had been | D．are |
Electricity ,like other forms of_________ ,has greatly increased in price.
| A．strength | B．force | C．power | D．energy |
In the good care of the nurses, the boy is _________ recovering from his disease.
| A．quietly | B．actually | C．frequently | D．gradually |
Ladies and gentlemen, please fasten your seat belts. The plane ________.
| A．takes off | B．has taken off | C．is taking off | D．took off |
The chairman thought ________ necessary to invite Professor Smith to speak at the meeting.
| A．hat | B．it | C．this | D．him |
As______ matter of fact, _______beauty of nature there made a deep impression on me.
| A．a; the | B．a; / | C．the; the; | D．/; the |