【简答题】She can speak quite fluent English. She____.A. must have been in the U.S.A. for some time B. must been in the U.S.A. for some time C. should have been in the U.S.A. for some time D. May be in the U.S....
【简答题】She can speak quite fluent English. She____.A. must been in the U.S.A. for some time B. must have been in the U.S.A. for some time C. should have been in the U.S.A. for some time D. May be in the U.S....