It’s desired especially this year that this rule _______be brought to the attention of all the teachers.

The boss requires that John ——————   at the company by ten．

If penicillin _____________ available, many people ______________ from sickness.

If he ______ it, he _______ it.

一What does the sign over there read?一“No person ______ smoke or carry a lighted cigarette, cigar or pipe in this area.”