-Can I pay the bill by check?-Sorry, sir. But it is the management rule of our hotel that payment ______ be made in cash.
all day, I went to bed early.
There is a natural phenomenon scientists call the greenhouse effect.
Every time I returned after an , I felt stupid because I was behind the others.
However, the eruption itself is really exciting and I shall never forget my first sight of one.
I go back to sleep when suddenly my bedroom became as bright as day.