The two young tigers have just ______ for the zoo. A: buyed B: bought C: been buying D: been bought

I ______ a present for you, but I can't find it now. A: buy B: have buyed C: would buy D: have bought

你在网上买过东西吗? A: Have you ever bought anything online? B: Have you ever buyed anything online? C: Will you buy anything online? D: Would you like to buy anything online?