外研版非谓语动词难点练习一、选择题1．How lucky Peter was! Some policemen arrived in time and __________ him out.A．managed to helpB．tried to helpC．succeeded to helpD．tried helping2．-What are on show in the museum? -Some photos _____by the children of Yushu, Qinghai.A．hav...

时间:2025-07-06 10:34栏目:行业资料