I don’t know _______________.
A. how did jack think up the plan.
B. Jack how thought up the plan.
C. Jack how to think up the plan.
D. how Jack thought up the plan.
What clean classroom! -Yes , It _________ every day .
A. cleans B. cleaning
C. is cleaned D. was cleaned
-What’s your favorite subject? -Art . _________makes me more exciting than it does.
A. Something B. Nothing
C. Anything D. Everything
You can’t improve your English_________ you work harder than before
A. if B. though
C. because D. unless
The pants are_____ short for to wear.
A. too much B. too many
C. much too D. many too
He doesn’t do his homework ______________, though he has ______________.
A. carefully enough, enough time
B. enough carelessly, time enough
C. carelessly enough, enough time
D. enough carefully，enough time
