The research on the new flu virus vaccine ischallenging and demanding. Who do you think can do the job—____ my students have a try

Shanghai is bigger than ______ in Jiangsu and bigger than ________ in China..

The plane is due to take off at 8:00 from theairport.— ______ we can’t get there in time— Try to take another flight then.

______ShenXue and Zhao Hongbo _______a gold medal in Canada in the Winter’s OlympicGames is really a pride for all Chinese people

I don’t doubt _____ he will pass the exam.[ ]