It seemed a pity they ate it after all the trouble they had _____in making it.

Finish your homework, ________ you can’t watch TV, Jim. – All right. Mum.

Mr Wang has worked as _______ English teacherfor more than 10 years. the C

Generally speaking, students’ inner motivation withhigh expectations from others essentialto their development.

下列各句中，语言表达得体的一句是 ( )