The maths problem is very easy, _____ I don’t think all of you can work it out.
—Hi, Ethan. I called you at 8:00 last night, but you didn’t answer.
—Sorry, I ______ the dishes.
wash
washed
am washing
was washing
—Tom, the high-speed railway(高铁)connecting Luzhou with Chongqing ______ this year hopefully.
—Amazing! I’m looking forward to it!
completes
is completed
was completed
will be completed
—The best things in life are free.
—Couldn’t agree more. Air costs ______, but we can’t live without it.
something
nothing
anything
everything
—Rebecca, have you decided what to do this Saturday?
—Not yet. I ______ volunteer at the old people’s home.
may
must
should
would
—Can you teach me how to improve spoken English?
—The more you practice, ______ it becomes.
the worse
the worst
the better
the best