----Hurry! There’s no time to waste.
----OK. But I’m afraid that ______ I work around the clock, I can’t catch up with those straight A students.
A. even if B. as C. until D. as though
Leonardo da Vinci ______ a scientist, if he had not been so skilled in other areas.
A. would be B. must be
C. might have been D. should have been
Many of the creatures in the movie “Avatar” are not real, but much of ______ happens is still attractive.
A. which B. what C. that D. them
Floyd Landis made several lame excuses blaming medicine he had been taking for an injury, but these were all ______.
A. in progress B. in vain C. in turn D. in tune
With the pressure of being off work ______, Mary seemed to be going crazy.
A. making up B. taking up
C. picking up D. building up
Fame and wealth can be attractive, but ______ will they give you permanent happiness.
A. in no time B. at a time
C. at all times D. at no time
