21. It was terrible earthquake and number of people who were killed reached more than 20 , 000 .
A. a ; the B. the ; a C. the ; the D. a ; a
22. We were glad to know that all the workers who in the mine were saved .
A. trapped B. were trapping C. had trapped D. had been trapped
23. If a shop has chairs he shop . women can park their men , women will spend more time in t
A. that B. which C. when D. where