下列词语中，加点字的字音不正确的一项是（ ）

What are you upto — ____.

An underwater hotel has opened in Africa，with its rooms＿on the bottom of a three－level floating building．

ou have a minute I’ve got something to tell you.——Ok, ______ you make it short.

Mr. Green requires that the students ______ cheat in any exam. [ ]