—Why are your eyes so red? You __________ have slept well last night.—Yeah, I stayed up late writing a report.
--The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can do the job? --________ my students have a try?
How long do you thinkthe car factory launches a new model?
—Haven’t you solved the problem yet? —Sorry, but I promise it in an hour.
________ the heavy snow came, the weather got colder and colder.
Jackson as well as his classmatesgoing to learn Shakespeare’s works next week, of which somehard to understand.