More than 1900 people in Africa have _______ the Ebola virus now and there is still no medicine_____ Ebola.
---When will Joe come here again? --- Next Tuesday or Wednesday. It’s up _____ him. A. On B. to C. for
--- Frank, are your parents strict with you? --- Yes, they always make me _______ my homework before I go out. A. to finishing B. finish C. finishing
---- ______ do you exercise? ---- Twice a week. A. How much B. How long C. How often
The question is quite difficult, so _______ students can work it out. A. few B. little C. much
—Do you often play computer games? — No,______. I don’t like them at all+ A. always B. usually C. never