There is ____ “u” and _____ “s” in ____ word “useful”.
You speak good English, I hope_____ us with our English.
—Did these pop stars_____ the meeting last Friday?—Yes, I was so excited to see them.
We often have three weeks ______ during winter holiday.
—Which month has ____days in a year?— February, of course.
—Guo Mingyi is an ordinary(普通的)worker.He helps many poor children in China.—He is____ example to us all.