One of the rules is that every student ________ wear school uniform while at school.

（题文）Always read the ________ on the bottle carefully, and take the right amount of medicine.

are very ______: they can live in forests, onopen plains, or in the snows of the Arctic

Haven’t seen you for ages! Where have you been—I went to Ningxia and there for one year, teaching as a volunteer.

te talking with that guy Look, he iscoming What should I do— Don’t speak until ____