—How about the book you are reading?—Good indeed. It many problems we have come across in our study.
—Where is your sister,Tom? —She________to school.
His father encourages him________up math.
—I’d like you to tell me something about Shennongjia. —I’m sorry,but neither Jack nor I________there.
Hello,everyone.This is our new classmate.Let her introduce________to you.
He gave________dollars to charities.