1,选through,因为只有throught有穿过的意思2.选smoke,因为black water是黑水,black dust是黑尘,black rain是黑雨3.选D,因为borrow 是借,receive是接受, got得到,offer提供
36.A37.B38.D
36.A 37.B 38.C
1OVER2 SMOKE 3 offer