TRẮC NGHIỆM 87. The car was so expensive that I didn’t buy it . A. The car was not so cheap that I couldn’t buy it . B. The car was such expensive that I didn’t buy it . C. The car was cheap enough for me to buy. D. The car was too expensive for me to buy. 88. We must take steps to preserve natural resources; otherwise the planet will be in danger. A. Unless we take steps to preserve natural resources, the planet will be in danger. B. Unless we take steps to preserve natural resources, the planet will not be in danger. C. If we take steps to preserve natural resources , the planet would be in danger. D. If we take steps to preserve natural resources, the planet will be in danger. 89. “I would study English if I were you ,” Mai’s friend said . A. Mai’s friend advised her to study English. B. Mai’s friend advised her to have studied English. C. Mai’s friend said that she was like Mai.. D. Mai told her friend to study English. 37/ Students ………. universities may have many difficulties in finding good study method. a. enter b. entering c. that enter D. who enter 39/ …………. tired, I went to bad early. a. To feel b. Felt c. Feeling d. Having 36/ ……………. a kind of everlasting energy, solar energy may be the sollution to our crisis a. Because b. Since c. As d. With 38/ your house has ………… nice furniture. a. such b. such a c. so d. towards