1. People __________the flooded villages when rescue works arrived
A. leave B. left C. had left D. leaving
2. Our city _______ from different kinds of pollution: water, air and noise.
A. is suffering B. are suffering C. suffer D. had suffered
3. The victims on the roofs of the houses _____ with food and water by the rescue team.
A. provided B. will be provide C. were provided D. had provided
4. Several tropical storms ______ our country recently.