obviously可以用在开头吗,那clearly呢

obviously可以用在开头,clearly也可以.不过你的例句是错句.
如
Obviously,he never identifies himself with something of which he does notapprove.
显然,他不会认同他不赞同的事物.
“‘Obviously we like the price of free because consumers like that as well," he　said.
他表示：“很明显的是,我们喜欢免费,因为消费者也喜欢