注意：此页面搜索的是所有试题
20. (单选题) He spends a whole day ______ by the pool, waiting the fish to be hooked.(本题2.0分)
A、 standing
B、 stand
C、 stood
D、 being standing
A、 standing
B、 stand
C、 stood
D、 being standing
参考答案
