1.( )A long strong stick _________ the earth just now.
问题描述：
1.( )A long strong stick _________ the earth just now.
A.was knocked in B.was knocked into C.knocked in D.knocked into
2.( )Mary ________ some songs in her room in the morning.
A.heard sing B.heard to sing C.was heard sing D.is heard to sing
答
1/ b
2 我觉得应该是 was heard singing 可是一个都没有