People …………… that the earth is round before.
by People …………… that the earth is round before. A. were not used to believe B. used to believing C. would not use to believe D. …
Thẻ: trắc nghiệm tiếng anh
Tuberculosis …………… incurable before.
Tuberculosis …………… incurable before. A. use to be thought B. used to be thought C. used to think D. use to think Xem đáp án …
Astronauts …………… in their spaceship, but they frequently work outside now.
Astronauts …………… in their spaceship, but they frequently work outside now. A. were used to stay B. used to stay C. were staying D. had …
People are destroying the air by adding …… to it.
People are destroying the air by adding …… to it. A. pollutants B. polluters C. pollution D. polluted Xem đáp án Đáp án: A Giải …
The waste from the chemical factory is extremely …….
The waste from the chemical factory is extremely ……. A. harm B. harmful C. unharmed D. harmless Xem đáp án Đáp án: B Giải thích: …
The …… friendly products are designed not to harm the natural environment.
The …… friendly products are designed not to harm the natural environment. A. environment B. environmental C. environmentally D. environmentalism Xem đáp án Đáp án: …
Learners can feel very …… if an exercise is too difficult.
Learners can feel very …… if an exercise is too difficult. A. courageous B. encouraging C. discouraged D. discouragingly Xem đáp án Đáp án: C …
The panda’s …… habitat is the bamboo forest.
The panda’s …… habitat is the bamboo forest. A. nature B. natural C. naturalized D. naturally Xem đáp án Đáp án: B Giải thích: Vị …
The factory was fined for …… chemicals into the river.
The factory was fined for …… chemicals into the river. A. discharging B. dumping C. producing D. exposing Xem đáp án Đáp án: B Giải …
Oil spills are having a devastating effect on coral reefs in the ocean.
Oil spills are having a devastating effect on coral reefs in the ocean. A. powerful B. significant C. disastrous D. detectable Xem đáp án Đáp …