Are they still doing the experiment? They're supposed______it by the end of last class.
—According to the agreement,you must finish the work by this month.—Don’t worry.We’re trying hard and it that long.
—I hear Robert has gone to Harvard University for his masters degree.—Oh,how nice!Do you know when he ?
—Sam speaks English like a native.I always admire him.—Now he is learning more difficult language—Arabic.
—Do you regret having left your first job?—Why should I?I as much,but I enjoy more of it.
Customs are different the area.