一Oh, poor Peter looks very weak.一＿if you suffer from a high fever for three days on end.

When _____ his view about his job as a teacher, Mike said he found it very interesting and rewarding.

Life is harder for Senior Three students throughout China．Hardly _____ endless exercises or tests．

Only then ___ that he had made a mistake.

Nowhere else in the world, in my opinion, _______ more attractive scenery than in Mount Huangshan.