Sandy didn’t tell her parents when to go home because she wanted to give them a _________.

 —What about having a picnic tomorrow morning?—Well, I don’t think it’s good ________ because the radio says it will be rainy tomorrow.

There are two       and five       in the zoo.

The boy is taller than_____ in his class.

High school ______ covers a lot, including Chinese, Math, Geography and so on.