Many American students love having Fridays __D__ so that they only need to work four days a week.
A.in
B.out
C.on
D.off
off表示休息的意思
4.One of the most important keys __ B _______ English is to establish a regular study program.
A.to learn
B.to learning
C.for learn
D.for leaning
A key to doing sth.表示做某事的关键
5.Some people _________ C ____ in the craze of leaning a foreign language in thirty days.
A.get caught with
B.get caught down
C.get caught up
D.get caught for
get caught up in sth表示注重某事
6.In an educational _ B _________,listening effectively is critical.
A.set
B.setting （环境）
C.back
D.ground
7.Speaking informal English,you will __ D __________ like a friendly person.
A.listen
B.hear
C.sound
D.be listened （表被动）