If you ____require any further information,please do not hesitate to contact us.
问题描述:
If you ____require any further information,please do not hesitate to contact us.
A.should B.would C.could D.might
请解析
答
A如果你需要任何进一步的信息,请不要犹豫与我们联系.为什么其他三个不行