---------------------{go] for a walk after supper is good for your health.
问题描述:
---------------------{go] for a walk after supper is good for your health.
答
Going(go)for a walk after supper is good for your health.
答
Going
答
填going,即动名词短语做主语,若用其他形式如go则使句子动词不明,因为is为此句真正的动词.