We are afraid of the teachers______ strict with students —So am I

Mr. Bill always makes his class very lively and interesting. — You are right. No one teaches ____.

We will celebrate the 90th birthday of the Chinese Communist Party _______June 29th, 2011 in Qinzhou. [ ]

The chairman thought __________ necessary to invite Dr. Smith to speak at the meeting.

Excuse me. Could you tell me? —＄328.