Which of these two magazines will you take?I’ll take________, in case the journey is boring.

Recycling is one way to protect the environment; reusing is ______. 

Cars do cause us some health problems——in fact far more serious ______ than mobile phones do.

_______ you said in the meeting was exactly _____ I expected to hear.

—Which one can I take? —-You can take__________ of them; I'll keep none.