____ I should ask them some questionsa.Should they come to usb.If they come to us c.Were they come to us d.Had they come to us

问题描述:

____ I should ask them some questions
a.Should they come to us
b.If they come to us
c.Were they come to us
d.Had they come to us

A

B

选B
if条件状语从句是主将从现,后面的should就表示将来时态