问题
选择题
—If you have any trouble, be sure to call me. — ______.
A．I am glad to hear that
B．I will. Thank you very much
C．I have no trouble
D．I will think it over
答案
答案：B
根据本句If you have any trouble, be sure to call me.可知if 引导的条件状语从句，在if 引导的时间状语从句，主句为祈使句，而从句用一般现在时，代替一般将来时，故选答案为B