I. 1-4 ACAC 5-8 BCBAII. 1. dentist 2. Internet 3. teeth 4. brush 5. betterIII. 1. take care of yourself 2.lie down 3. day and night 4. feel likeIV. well , matter, take, how, less选择题1.—what does jack do?—____a. hes from canada. b. hes a student. c. hes thirteen.答案:b2.—help yourselves, kids!—______a. me, too. b. thank you. c. all right.答案:b从每小题a、b、c三个选项中,选出能填入空白处的最佳答案。1.当你弄坏了别人的玩具,应该说“ ”表示道歉.a.thank you b.how are you? c.im sorry.答案:c2.当你向别人介绍李明时,应说“ ”.a.im li ming. b.this is li ming. c.hello, li ming.答案:b3.当你向别人告别应说“ ”.a.bye-bye! b.how do you do? c.hi!答案:a