老年恐惧症的临床表现:they cut the grass in the park .=the grass ()()in the park ..

来源:百度文库 编辑:神马品牌网 时间:2024/05/08 02:43:59

was cut
cut 是过去时
因为如果是现在的时态 应该是 they are cutting……

所以 过去时 + grass 不可数 + 被动 ==> was cut

is cut

is cut
草被剪,这里的cut是cut的被动态,整句句子是被动句.

is cut

was cut