_____your composition carefully, some spelling mistakes can be avoided．

It’s reported that ________ young ____ to be rebellious against ____ parents’ instructions nowadays.

Must I hand in my exercise book now, Mr. Zhao?—No, you ______. You may give it to me tomorrow.

Living on Mars isn’t ________ as it sounds.

He wasn’t angry when he heard the news. _____ he was very happy. [ ]