Only when I left my parents for Italy ________ how much I loved them.
No matter ______ the CRH accident in Wenzhou, it had and will have much warning significance.
I should apologize to you for failing to visit you last week, but I've been very busy_____ the past few months.
“As you need a day or two to ______ jetlag, you'll have a light schedule for today and tomorrow.” said my boss.
Students are required to go out in couples, especially in the evenings, with friends ______ they get into trouble.
--- How I regret making the stupid mistake!--- Yes. I your doing it another way at that time, but in vain.