"Look what you've done!You ______more careful."
A、hadtobeC
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Finally,the thief handed everything ____ he had stolen to the police.
Gene: Shall I open this window?
Jodie: ______
Humanbeingsaresuperiortoanimals_____theycanuselanguageasatooltocommunicate.
We'd better eliminate junk foods from our kitchen and keep a variety of high-quality foods_____ at all times.
Theaeroplane____shewastravelingwasdelayedforthreehoursatleast.
