How do you use 时候 and 时间?

/ , ,

The correct answer is

B.
Translation:

Wǒ míngtiān qù Běijīng. William：我    明天      去   北京。

I am going to Beijing tomorrow. Nǐ yào qù duō cháng shíjiān? Tina：你 要   去   多    长       时间？

How long will you be gone?

Explanation:

This test aims to check your …