Most people felt __________ regrettablethat Yaoming retired from the NBA.

My sports shoes are _____ out.—Howlong have you_____them

I think it is going to be a big problem.—Yes，it could be.—I wonder__________we can do about it.

I’m worried about tomorrow’s math exam.— ______ . I’m sure you will make it.

My father often gets up____7:30 _____the morning_ Sunday.