1.Oneoftheboys_____ablackhat.
AhaveBthereisCthereareDhas
为什么它奇怪的出现在句首呢)
2.Wewillgoshoppingifit____tomorrow.
Adon'trainBdidn'trainCdoesn'trainDisn'train
(这道题是什么时态啊,will是将来时吗?)
3._____yoursister_____(know)English?
A.Do;knowB.Doesknowsc.Doesknow
(为什么呢?)