We can protect ourselves by washing our hands more often. (对划线部分提问)
_______ _______we protect ourselves?
All people in our town warmly welcomed the medical workers back from Wuhan. (改为一般疑问句)
_______ all people in our town warmly _______ the medical workers back from Wuhan?
— I'd like to see Professor Li, please. ________?
—You've just missed him.
A.Is he available B.What's wrong with him C.Does he agree D.What's he doing
—Today, I met a classmate I haven't seen for many years!
— ________.
A.Enjoy yourselves B.What a surprise C.Congratulations D.It doesn't matter
It's too early. I don't think the ticket office is open ________ nine.
A.before B.at C.until D.since
________ he had a good start, I made my effort to run after him at last.
A.When B.Because C.If D.Though
