In spring, we can often hear some birds_______ in our school.
My friend’ s hairstyle is similar _______ mine.
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.