问题
选择题
—The train is due to leave at 7：50.
—________ we fail to arrive there in time?
—I'm afraid you'd better go in a hurry.
A．What if
B．As if
C．Even if
D．Only if
答案
答案：A
A [考查省略。what if 要是……该怎么办？as if 好像；even if即使；only if 只有在……条件下。第二句可还原为“What shall we do if we fail to arrive there in time？”。]