h, the classroom is so dirty. Itneeds ______ before we begin our class.

Do you like vegetable salad— Yes, it ____ so nice! I’d like to have some more.

You’d better get all the work _________ before youleave.

lack, I think you have good taste in ________ art. So would you like to take ________ look at the painting—Yes, I’d love to.

_______ medicine works in a human body is a question _______ not everyone can understand fully.