19 “Who are making so much noise in the garden?” “_______ the children.”

for months to look for a job as a bank clerk, Smith finally took a position at a local advertisingagency.[ ]

The documentary Under the Dome (《苍穹之下》) which ________ by Chai Jing showed us that the air pollution in China was very serious.

_____ basic first-aid techniques will help you respond quickly to emergencies

I had just stepped out of the bathroom______ I heard the steps.