What a pity. If I had caught that flight, I ____ over the Pacific Ocean now.
| A．would fly | B．would have flown |
| C．would be flying | D．were flying |
Miss Smith is a friend of ______.
| A．Mary’s mother’s |
| B．the mother of Mary |
| C．mother of Mary’s |
| D．Mary’s of mother |
From the top of ______ Empire State Building, you could see up to ______ distance of 130 kilometers on a clear day.
| A．the; the | B．不填; a | C．an; the | D．the; a |
He is always full of ______ as though he never knew tiredness.
| A．strength | B．energy | C．force | D．power |
Apples are usually sold by ______weight, and eggs are sometimes sold by ______ dozen.
| A．the; the | B．不填; a | C．不填; the | D．the; a |
Susan, ______ university student from Europe, teaches me ______ art in her spare time.
| A．an; 不填 | B．a; the | C．a; 不填 | D．an; the |