—Linda, I called you this morning, but nobody answered the phone.
—I'm sorry. I football with my friends then.
A. play B. played
C. am playingD. was playing
I told Tony the exciting news__________ he came back home last night.
A. so thatB. as soon as
C. howeverD. until
---- It’s very important for everyone to exercise. do you exercise?
----Three or four times a week.
A . How long B. How far
C. How soon D. How often
---- Is that girl Susan?
---- It ______ be her. She left for Beijing yesterday.
A. needn'tB. can't
C. mustn'tD. couldn’t
----Shall we go to the amusement park this Sunday, mum?
---- Sure, ________ I am busy.
A. unlessB. if
C. butD. or
This is the third time the famous scientist __________ the United States.
A. has been toB. has been in
C. has come toD. has gone
