根据句意和汉语注释，写出单词的正确形式。
小题1:Parents should have more ______________ (交流) with their children.
小题2:Finally, the climber ______________ (设法完成) to get to the top of the mountain.
小题3:The rich man has a lot of poor ______________ (亲戚). He gives them much money every year.
小题4:It is amazing that a cow has four ______________ (胃).
