问题

What’s your plan for the coming summer holiday—I’ll devote as much time as I can ________ some voluntary work.

A:to do
B:doing
C:do
D:to doing;

正确答案是：

同类题型

下列句子中没有通假字的一项是（）

using so many raw materials every day, which_______ that they _______.

The plane is a flying eye hospital that belongs to amedical charity called _______.

The math problem is _____ difficult that only _____students can work it out.

Years ago we didn’t know this, but recent science ______ that people who don’t sleep well soon get ill