The students will clean the yard in a minute.(对划线部分提问,划线部分是in a minute)______ ______ will the students clean the yard?

问题描述:

The students will clean the yard in a minute.(对划线部分提问,划线部分是in a minute)
______ ______ will the students clean the yard?

HOW LONG

what time will the students clean the yard

How soon will the students clean the yard?

How long will the students clean the yard