I don’t think the experiment is ______ failure, because it has provided us with _____ valuable experience for our future tests.
A.不填; 不填 | B.a; 不填 | C.a ; a | D.不填; a |
____ you know your potential(潜力), you have to rely on many other people to get to where you are.
A.While | B.Since | C.If | D.Where |
It was not until Maggie had arrived at her office _____ her appointment with the doctor.
A.did she remember | B.had she remembered |
C.when she remembered | D.that she remembered |
When _____ my childhood, I get lost in happy memories of times now gone forever.
A.looking out for | B.looking forward to |
C.looking back on | D.looking down on |
----- Now that you like the portable personal computer so much, why not buy one? It is of great use to your work.
---- Well, I can’t afford _____ computer at present.
A.a such cheap | B.so expensive a |
C.so an expensive | D.so cheap |