hard to do sth.还是 hard doing sth.Could you please do sth.

是hard to do sth 还是 hard doing sth would you mind doing sth.could you please do sth. 语法中please to do sth还是please doing sth 还是please do sth? use sth doing sth还是use sth to do sth plan+to do sth.还是doing sth.还是 do sth. expect to do sth还是doing sth? mind doing sth还是 to do sth learn+to do sth 还是 doing sth finish to do sth还是doing sth promise doing sth还是to do sth would you like doing sth.还是to do sth. would you please 是to do sth.还是doing sth.或者是其他的?