1. A. strike B. catch C. occur D. enter
2. A. at B. to C. from D. of
3. A. magnitude B. category C. measure D. extension
4. A. significant B. catastrophic C. destructive D. magnificent
5. A. left B. made C. found D. stayed
6. A. by turns B. by the way C. by chance D. by far
7. A. When B. While C. After D. Since
8. A. shortages B. losses C. changes D. crisis