单项选择题30().
A. after B. until C. when D. since
单项选择题29().
A. reminded B. guaranteed C. convinced D. promised
单项选择题28().
A. fine B. special C. helpful D. normal
填空题70().
填空题69().
单项选择题27().
A. none B. few C. some D. each
填空题68().
单项选择题26().
A. kept up with B. caught up with C. came up with D. put up with
填空题67().
单项选择题25().
A. strength B. independence C. importance D. safety