it's important__ and helpful A.to be kind B to kind C.be kin

英语题 （帮帮我吧）It's important_____and helpful.A.to be kind B.to k be kind to sb;it's kind of sb to do sth;kind of +adj;a kind It's so kind _____ you to be kind ___ me.A of of B of to Cto They feel ___ their duty to be kind and helpful to others请问这 be kind to do It's a kind of happiness to be alonesometimes for the reason It's very kind ( )you to say so.A.to B.of C.for Would you be ___ shut the window?A.enough kind to B.kind eno be kind to sb 和 to be be kind to do sth还是be kind to sb? be kind to sb 造句 be kind to sb同义词