21. The general commanded _______________. (A) that his men had retreated (B) his men to fire (C) his men retreating (D) that his soldiers shot

22. The United States lags behind several European countries in life expectancy _______________ it spends more money on medical care and has more spectacular medical technology than any other country. (A) now that (B) owing to the fact that (C) for fear that (D) despite the fact that