He made a suggestion _____ the meeting _____ be put off until next Tuesday.

Life is like a long race ____ we competewith others to go beyond ourselves．

(2014·山西部分重点高中高三联考)Mrs Black had such a wonderful time________she visited her friends in Sydney last year

. If you don’t like to swim, you ____ as well stay at home.

It was only when the war broke out ______ he began to realize everything was too late.