英语的练习一 present;since;doctor;pollution;open;D;A;B;A;C;B;B;AD;B;was taught;married;swim;came;have been;have lived;was. 练习二 changes;seen;in fact; marry; southern; had fun; won't until; have been married; has kept; different from A A D B D A B B 练习三 possible;service;althgough;attraction;present;have;since;How many;Wh...
