Your pencil case looks really beautiful.— ________. But in fact, Gina’s looks better than mine.

We tried to ____ his doubts and let him tell the truth.

He told me ______ he would do with the waste materials the next week.

Many questions________ in today’s maths class,and most of them are very difficult. [ ]

下列加点字的注音完全正确的一项是（ ）