呢句should be文法有冇錯??

1. resoures 應該串做 resources
2. should be　ｅｍｐｌｏｙｅｄ　會成為被動式(passive　ｖｏｉｃｅ
　所以應該寫做　should employ
３ｉｎｆｏｒｍａｔｉｏｎ centre前面應該加番ｔｈｅ　字

所以全句應為　ｈｕｍａｎ resources　ｍａｎａｇｅｒ　ｓｈｏｕｌｄ　ｅｍｐｌｏｙ more　ｓｔａｆｆ　ｉｎ　ｔｈｅ information center

The Human Resources Manager considered/proposed that more staff should be employed in the information centre .
The Human Resources Manager proposed that the information center should employ more staff .
The Human Resources Manager should consider employing more staff in the information center .

employ 是僱用，多作已聘用解。
招聘應用 recruit
Human Resources Manager should arrange to recruit more staff for the information centre.

你用錯咗被動式(passive voice)，be(可以係is, am are, was, were, will be...總之係個be變出黎既) + past participle就係被動式，依家你呢句既意思變咗要請既係human resourses manager而唔係more staff。

英文其實唔係咁常用被動式，通常都係要強調受詞先會用。

呢句應該係
The human resourses manager should employ more staff for the information center.

若你想保留被動式，成句就係
More staff should be employed by the human resourses manager for the information center.
不過咁講有d怪，雖然文法無錯，但係唔會有人咁講。