【题目】【原创】 Green roofs have an ______effect, helping reduce the amount of energy______ to heat a building in winter and cool it in summer.

A. isolated；needed B. isolating；needed

C. isolated； needed D. isolating；needing

【题目】 From his on his face, I knew he didn’t want me to ask this question.

A. expression B. expectation

C. explanation D. impression

【题目】__________ around Tian'anmen Square, the tourists were taken to visit the Palace Museum.

A. Showing

B. Having shown

C. Being shown

D. Having been shown

【题目】He is honest and warm-hearted. __________ is why we trust him.

A. It

B. That

C. This

D. These

【题目】—How do you like the roast duck?

—It __________ good.

A. turns

B. tastes

C. feels

D. keeps

【题目】Working hard________success，while success________working hard.

A．lead to；lie in B．leads to；lies in

C．lie in；lead to D．lies in；leads to

【题目】Cats and tigers are animals of the cat family (猫科动物), so cats __________ tigers in many ways.

A. are similar to

B. are similar from

C. are different from

D. are different to

【题目】It is________ten；I must leave now.

A．close up B．close down

C．close to D．close with

【题目】At school, some students are active __________ some are shy, yet they can be good friends with one another.

A. while

B. although

C. so

D. as

【题目】Having been praised by the teacher，the little girl ran back home，________．

A．happily and satisfied B．eager and excitedly

C．happy and satisfied D．anxiously and excitedly