1.our parents are very..........that we are working harder. A.please B.pleased C.pleasant D.pleasure 2.........the old man has never traveled by plane before, he is not nervous or afraid. A.thus B.Therefore C.although D.because 3.The wind last night was so strong that it blew the roof of the house......... A.apart b.about c.down d.off 4.we went to TSN airport to...........off a friend leaving for paris. a.see b.tell c.say d.join 5.if you want to save money, you should.........the amount of water your family uses. a.increase b.reduce c.adapt d.repair 6.a lot of fish, toads and frogs...........from electric shock waves a.died b.killed c.ran d.fed