What can we do to keep our city clean ?
Go downstairs， __________stand in line on the playground as soon as possible．
--- Could you tell me __________________? --- Not until Next Tuesday.
You are sure to fail the exam you study hard.
I feel necessary to accept his advice because it’s of great to me.
—You should make more friends at school! —I’d love to.But I don’t know how to ________ others to talk with me
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