Question

—What is he going to ______ when he ______ up?

—He’s going to be a doctor.

A.do, grow B.does, grows

C.be, grow D.be, grows

Answer 1

D

【解析】

试题分析：句意：-当他长大后想干什么？--他想成为一名医生，be going to do打算干某事，when当……时，主句用一般将来时，从句用一般现在时。结合句意，故选D

考点：考查一般将来时的用法。