用适当形式填空.1.let✀s__(p|ay)the piano.

Let's_play_(p|ay)the piano.

考点：let是使役动词,接宾语后,接动词原形（不带to的动词不定式）
let sb do sth
拓展：一般情况需要.使役动词被动情况需加上to.例如：
They let him talk. → He was let to talk.
They made him run. → He was made to run.
但有一种情况例外,就是let go. → He has been let go.他被放了.
Let go,是一个非常固定的短语,指放了某人.我们经常在美国的动作片里听到这个词.因 为用得实在太多了,所以被动的时候人们还是习惯用let go.
语法上,let to go也是可以的.

1.let's (p|ay)the piano.

不明白可追问；如果对你有帮助，别忘了采纳和点赞哦！Thanks!May you be happy every day and make great progress !

play 用原型【let sb. do sth.

playing