单项选择题

Hello! I"m calling to cancel the appointment I ______ with Dr. Smith.

A．am making
B．have made
C．will make
D．had made
<上一题 目录 下一题>
热门 试题

单项选择题
Tough as the task was, we ______ finish it ahead of time and therefore we were highly praised for it.
A．would
B．had to
C．were able to
D．must
单项选择题
Carbon dioxide ______ from burning fuels is the most common of the so-called greenhouse gases.
A．producing
B．having been produced
C．to be produced
D．produced
相关试题