Thomas Alva Edison didn’t “invent” the light bulb (灯泡), but rather he ______ a 50 –year –old idea, which is not well –known.
A.improved upon | B.take down | C.put up | D.break away |
In march,2008, Medvedev was elected _______ president of Russia—________ position he will hold for 6 years.
A.a; a | B.不填;a | C.the; a | D.the; the |
When _______ to F1, I have little knowledge to if.
A.I come | B.they come | C.we come | D.it comes |
I feel like _________ a long walk. Would you like _______ with me?
A.taking; going | B.taking; to go | C.to take; to go | D.to take; going |
You will succeed in the end ________ you give up halfway.
A.even if | B.as though | C.as long as | D.unless |
Paul is good, kind, hard-working and intelligent; _____, I can’t speak too highly of him.
A.as a result | B.in a word | C.by the way | D.on the contrary |