Extreme sports such as rock climbing can be very dangerous, so we________ be too careful.
A.can’t B.mustn’t C.shouldn’t D.needn’t
— On March 30, 2020, a forest fire broke out in Sichuan.
— Yes. You can’t believe how terrible the fire is ________you see it with your own eyes.
A.because B.unless C.since D.though
About ________ of the earth is covered with water, but more and more water has been polluted.
A.three-forth B.three-forths C.three-fourth D.three-fourths
I________in London for over ten years, but I’ve never regretted my final decision to move back to China.
A.was living B.would live C.lived D.have lived
My father is an engineer, but he is ________of a poet. He often writes poems in his spare time.
A.something B.anything C.nothing D.everything
Tik Tok (抖音) has some advantages over traditional video, but I’m still ________teenagers spending too much time on it.
A.for B.beyond C.on D.against
