Question

—Andy works hard．—So he does．He is often seen _____ heavily before his teammates have even arr

—Andy works hard．—So he does．He is often seen _____ heavily before his teammates have even arrived at practice． A．to be sweated B．sweated C．be sweated D．sweating

Answer 1

D

考查短语 see sb doing 看到某人正在做某事，此句是被看见正在做某事，应是：sb is seen doing 所以选D 。