Look out!That milk ____(boil) over.
问题描述:
Look out!That milk ____(boil) over.
答
Look out!That milk boil over.
答
is boiling。look out为现在进行时的标志
答
is boiling 此处一方面是为了引起人的注意;另一方面,与前文的Look out呼应,表示一种即将要沸的意思,是用进行时态表将来
答
is boiling
应为引起别人的注意