Always read the label ______ you wash your clothes．
A．before B．unless C．since D．until
—Flight 331 _____．I'd better be on my way．Goodbye．
—Bye．Happy landing!
A．is announced B．is being announced
C．is announcing D．has announced
To appreciate that it's not easy for you, but you ______ try to get here on time．
A．may B．must C．will D．can
—Sorry we're late．We ______ the wrong turning．
—That's all right．Come in, please．
A．take B．have taken C．took D．had taken
You can try to guess the meaning of ______ words you don't know from ______ passage．
A．the; 不填 B．the; the C．不填;不填 D．不填; the
开放作文（15分）
In your English class, your teacher shows you the following picture. You are asked to describe the picture and explain how you understand it.
