Nearly a week passed before the girl was able to explain what()(happen)to her.

He let a week go by before answering the letter.（英译中)

I haven’t been out of the office before 9 pm. a single day this week.{A; B; C}A. 这周

A（n)______of labor unions opposed the bill by continuing the strike for nearly one week.A．

When should the contract materials be sent？A．Last Friday.B．Before July 21st.C．Next week.D．

When do students pay for the books？A．As soon as they fill out the form.B．The week before c

The girl said that she______here a week before.A．had beenB．wasC．has beenD．would be