6、wtousethecomputer? —___________.A.NevermindB.NotatallC.NoproblemD.That’sallright17. Thereareabout_______________studentsinourschool.A.fourthousandB.fourthousandsofC.fourthousandofD.thousandof18.— theweather ?—It’srainingA.How’s, like B.What’s, like C.what’s,/19