---I don’t know what if I do that.
---I think you tell him the whole thing first.
A. happens; should
B. happens; shouldn’t
C. will happen; should
D. will happen; shouldn’t
网友回答
A. happens; should
B. happens; shouldn’t
(答案→)C. will happen; should
D. will happen; shouldn’t
解析：第一句为宾语从句，如果主句为一般现在时，从句根据自己的情况，故选用将来时，根据上下文的意思，可知答案为C