You are saying that everyone should be equal, and this is ________ I disagree.
—In case anyone ________ come in my absence, tell him I will be back soon. —Sure, I will.
John ________ yet, or he would have telephoned me.
—She looks very happy. She ________ have passed the exam. —I guess so. It's not difficult after all.
A survey has shown that 40% of those killed in traffic accidents ________ if they had been wearing seat belts.
—The research on the new flu virus vaccine is challenging and demanding.Who do you think can do the job? —________ my students have a try?