—Look! He’s jumping so far!
—Hard to ________ his legs were once broken.
A. know B. find C. imagine D. realize
--- Is David crazy about football?
--- Yes, he often goes to play football _______ school is over.
A. before B. since C. until D. as soon as
---Why not________ to the park with us now?
---Good idea! Let’s go.
A. go B. to go C. goes D. going
Finding information in today’s world is easy. The __________is how you can tell if the information you get is useful or not.
A. ability B. competition C. challenge D. knowledge
--- What do you think of the two children?
--- The boy looks nice ________ white and the red sweater looks good ________ the girl.
A. with, on B. in, on C. on, in D. in, with
Jerry Lin is ________ NBA player. He once studied at ________ university at Harvard.
A. an; a B. a; a C. an; the D. a; an
