—Why are you staying up so late playing computer games again？Stop being so________！
— I’m not playing games, just searching for some information.
A．funny B．silly
C．serious D．happy
—Could we go and watch the football game?
—No, ________you have the tickets.
A．if B．unless
C．because D．since
The tour guide has made the route for the school trip. We don't need to_______ that.
A．be worried about B．be afraid of
C．be sorry for D．be terrified of
—How do you communicate with your foreign friends?
—________writing emails, of course.
A．With B．By C．At D．From
—Could you tell me how to remember new words quickly?
—Yes, I think a ________tree can help you a lot.
A．grammar B．equation
C．punctuation D．vocabulary
— Mom, I was the first to reach the top of the mountain.
— Good job, Charlie. I’m ______ of you.
A. tired B. proud
C. sure D. pride
