Why are you standing, Annie-I can’t see the blackboard clearly. Two tall boys are sitting_______ me.

140MrZhang is such a considerate person ______ all his colleagues like to work with

Scientists hope someday to cameras to small ?animals? like bats and birds,so that they can do filmmaking on animals. [ ]

a perfectly normal walk.

Do you like the new pen? —Yes, it_____ smoothly