A bus ____________ goes to the airport runs every half an hour.
A. who
B. whose
C. whom
Đáp án đúng là: D
Giải thích: Dùng đại từ quan hệ which thay cho danh từ chỉ vật
Dịch: Một chuyến xe buýt đi đến sân bay cứ nửa giờ một lần.
Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 1 to 5.
One of the most urgent environmental problems in the world today is the shortage of clean water. Having clean drinking water is a basic human right. But acid rain, industrial pollution and garbage have made many sources of water undrinkable. Lakes and even entire seas have become large pools of poison. Lake Baikal in Russia is one of largest lakes in the world. It contains a rich variety of animals and plants, including 1,300 rare species that do not exist anywhere else in the world. But they are being destroyed by the massive volumes of industrial pollutants which pour into the lake everyday. Even where law existed, the government did not have the power to enforce them. Most industries simply ignore the regulations. The Mediterranean Sea occupies 1% of the world's water surface. But it is the dumping ground for 50% of all marine pollution. Almost sixteen countries regularly throw industrial wastes a few miles off shore. Water is free to everyone. A few years ago people thought that the supply of clean water in the world was limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce, and we are at last beginning to respect this precious source. We should do something now.
How many countries throw industrial wastes into the Mediterranean Sea regularly?
A pacifist is a person ____________ believes that all wars are wrong.
Many sources of water are not drinkable because of ____________ .
Somebody ____________ Jack while he was classifying his stamp collection.
Yesterday morning the first worker coming for the office was Mr. John.