His father often tells him _______ in that river because it’s dangerous.
My father has worked there ___________.
Daniel lives with his family _______ a flat _______ a quiet street.
Don’t say bad words ______ your friends. It’s ________.
—Oxfam trailwalkers in Hong Kong have to climb________ twenty hills and mountains.—It’s really a tough hike.
Alice learned the news TV that a Chinese student was killed in Boston marathon blasts.