—Guess what? I happened to have met Mark at the party last week.
—If my memory serves me correctly, you two ________ each other for almost ten years.
A. haven't seenB. hadn't seenC. didn't seeD. don't see
Though a typhoon is on the way, people are still looking forward ________ the outdoor concert by the pop singer.
A. to canceling B. not to canceling
C. not to cancel D. to not canceling
It is a golden rule in international trade that if you export nothing but raw materials, you're at the ________ of world prices.
A. riskB. expenseC. mercyD. cost
Many a time in life, you just need to take up all your courage and do something your heart tells you to, because it is worth ________.
A. thatB. itC. muchD. well
Jane opened the window to ________ a little air and sunshine.
A. admitB. admireC. adaptD. adopt
Seeing a stranger with a knife in his hand, the little girl stood under the tree, ________ out of her mind.
A. frightenedB. be frightened
C. to be frightenedD. frightening
