Question

 I have to be off now. My friends _______ outside.

   A. wait             B. are waiting         C. have waited              D. were waiting

Answer 1

【答案】B

【解析】考查动词的时态。由“我现在不得不离开。”可知“我的朋友正在外面等我。”表示说话时正在进行的动作用现在进行时态。故选B。