We can go swimming in the lake insummer. But why don’t you like it— Because it’s ___________.

the new schedule, teachers of primary and secondary schools must _____each class on time instead of adding extra lessons.

当你对别人表示感谢时, 下面哪句话时不合适的:

Good morning. I’ve got an appointment with Mr Smithin his office. —Morning.You ________ be Mr Jones. This way, please.

Bob, can you read the number 2, 307,018 —Yes, I can. It’s ________.