—Mr. Wang, I have trouble ____ the text.
—Remember ____ it three times at least.
A. to understand; reading B. understanding; reading
C. understanding; to read D. to understand; to read
One of my teachers ____ an Englishman.
A. is B. are C. do D. does
It is not polite ____ in public places.
A. smokes B. to smoke C. smoked D. smoking
The girl saw a snake ____ on the road and was frightened.
A. lie B. lies C. lay D. lying
—Is there ____ in your exercise book today?
—No, Mom. I did it very carefully.
A. something wrong B. wrong something
C. anything wrong D. wrong anything
—Does Ted tell you ____ he will come next week or not?
—No, he doesn’t. But ____ he comes, I’ll give you a ring.
A. if; whether B. whether; if
C. if; if D. if; until
