—Dad, I've tried my best but I still can't solve these problems.
—Don't worry, my son. No one is ________ and everyone fails from time to time.
A.successful B.confident C.perfect D.excellent
"Don't go to Wuhan ________ it's really necessary," Zhong Nanshan, a famous expert said to the public. But he rushed to Wuhan by train to fight against the virus.
A.unless B.when C.since D.although
Tao Yuanming's simple and direct writing was different from the writing style of his time. He was ________ the rules.
A.too brave to break B.too brave to follow C.brave enough to break D.brave enough to follow
— I'm impressed with Jim Hawkins in Treasure Island. He knows what matters and what he should ________.
— Yes, he doesn't make himself live only for money.
A.put up B.give up C.set up D.cheer up
________ you start worrying, do what you can about the problem right now. If there's nothing to do, just let it go.
A.Whoever B.Whatever C.Whenever D.Wherever
— Jim, never throw objects from the building. Even a small object ________ cause serious injuries, or death, when dropped from a great height.
— OK, I won't do that, mum.
A.must B.should C.may D.need
