Playing football and basketball ( ) interesting.这里该填is还是are?
问题描述：
Playing football and basketball ( ) interesting.这里该填is还是are?
答
is
Playing football and basketball 是同一概念，当单数
答
应该用is
如果是PLAY XXX AND PLAY XXX 就是 ARE INTERESTING
答
playing(...) is interesting
主语是playing 动名词做主语
单数
答
is