---Why do you look so upset?
---There are so many troublesome problems _____.
A．remaining to be settled B．remained settled
C．remaining to settle D．remained to be settled
— Alice told me you called yesterday.
— Yes, I had a problem with Jane, ___________I thought you could help me with, but you were not in.
A．who B．whom C．that D．which
_____, and I believe you will realize your dream.
A．Making a little bit more effort B．Make a little bit more effort
C．To make a little bit more effort D．If you make a little bit more effort
—How long do you think the terrible snow will_____ ?
—Sorry, I didn’t listen to the weather forecast.
A．keep out B．keep on C．keep up D．keep away
Most disaster experts believe there is the potential ______ things could get a lot worse.
A．what B． where C．which D．that
It ______ to me that I should go to attend a meeting when I was about to go home．
A．occurred B．struck C．happened D．reminded
