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You should _______________ to one or more weekly magazines such as Time or Newsweek.

— ___________________

— Once or twice a week.

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

Whether we will go or not __________ the weather.
Which ________ do you prefer, coffee or orange juice?
控制传染病流行与传播的基本措施包括 ___、 ____、 __、 ____。
控制传染病流行与传播的基本措施包括 ___、 ____、 __、 ____。
隐孢子虫的传染源是________________________。
.______和_____是血吸虫病的主要传染源。
Tables______ of stones or wood.
Without water, _________ no plants or animals.
I am wondering if they are ____ or____.
_________ in a person’s speech or writing usually ranges on a continuum from casual or colloquial to formal or polite according to the type of communicative situation.
__________ is the act performed by or resulting from saying something; it is the consequence of, or the change brought about by the utterance.
预防传染病要从控制传染源、______和_______几个方面进行。
传染病流行的三个环节是:传染源、________和________。
传染病流行过程的三个基本环节为传染源、传染途径和____。
All people, whether they be rich or poor, strong or weak, privileged or deprived,are interdependent, and _______ the common task of seeking to achieve mankinds full potential
Many boys enjoy _______ football, basketball or baseball
- What does the sign over there read - “No person ________ smoke or carry a lighted cigarette, cigar or pipe in this area”
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