"TO THREATEN" IN THE PASSAGE MEANS_______. A. TO POLLUTE...

50. "to threaten" in the passage means_______.

A. to pollute B. to give fear to C. to vanish D. to poison

___________THE END____________

KEYS

I-1.C 2.B 3.C 4.D 5.A 6.D 7.C 8.A 9.C 10.B 11.A 12.D 13.B 14.A 15.D 16.A 17.B 18.C 19.A 20.D 21.D