－John’s English is very good. －Yes. I want to know ____________.

My mother arrives late _______ work because of the heavy rain.

The Iranian government is accused of _______ some terror organizations in the Middle East by the United States, who can’t not produce firm evidences to prove it. [ ]

(2013·福建，31)Those poor and needy teenagers were excited to find a shop at the corner where they could buy ________ priced bikes

_______,I lost heart in English learning,but my teacher often said to me,”Keep on working hard; you’ll succeed________.”[ ]