Many countries are in great need of natural gas, wind and other forms of ________.
| A．power | B．source | C．energy | D．material |
【原创】—Who has taken my pen away?
—__________. He was here a moment ago.
| A．It must be Li Ping | B．It is Li Ping take |
| C．Li Ping is | D．Li Ping must take |
【原创】____________professional violinist practices for several hours a day, but____________ violinist has his own way of playing the Beethoven concert.
| A．Each, every | B．Every, each |
| C．One, a | D．All, each |
【原创】Mr. Zhang gave all textbooks to all the pupils, except___________ who had already taken tem.
| A．these | B．those |
| C．the ones | D．the others |
【原创】Besides Tom, ________ Crosettes have two other sons, __________ of whom are all interested in making model planes.
| A．不填; two | B．不填; the two |
| C．the, three | D．the, the three |
【原创】Nobody noticed the thief slip into the house because the lights happened to__________.
| A．put up | B．give in |
| C．be turned on | D．go out |