I hope you _______(telephone) me before you_______(return) to you_英语解答

I hope you _______(telephone) me before you_______(return) to your hometown.=添will telephone,return和telephone,was return都对吧?
The zookeeper told us __________(not make) any noise in the zoo.添not make对吗?tell 不是带不带to的不定式吗?
帮我讲解一下before后的语态

人气：218 ℃　时间：2020-05-27 12:31:11

解答

will thelephone,return
因为这句话主句是一般现在是,而说话的时候you还没有return,所以只有这组正确.
not to make
tell sb to do/tell sb not to do
to 不可省略