【题目】-----Is this _____ key, Jim? -----No, it isn’t. It’s _____.

【题目】— Some tourists often (刻画) their names on the wall in places of interest.— That's a bad behavior. We shouldn't do that.

【题目】China(已采取措施）to control the population.

【题目】-----Excuse me, sir. Here’s a letter for Liu Tao. Which room does he live in? -----_____.

【题目】Ann used the computer for shopping, _______?

【题目】What _____ your grandfather _____ this time yesterday ?

【题目】Why is my washing machine not working if there’s ________ wrong with it?

【题目】If you want to try some local food, don’t ________ the food festival this weekend.

【题目】–Don’t walk on the left of the road, boy.

【题目】It's said that dragons are powerful animals which (保卫、守卫)the whole nation.