Giải thích I. Choose the best answer A, B, C or D to complete the sentence. 1. Mercury is the smallest and closest planet the Sun. A. from B. to C. toward D. of 2. Theres no water on Mars even though scientists have found traces it. A. on B. with C. for D. of 3. Neptune is so far from Earth, it is _ to the naked eye. A. invisible B. impossible C. disable D. unsuitable 4. Nick saw aliens corning out of the UFO, which a big disc. A. stood for B. consisted of C. looked like D. lived on 5. Could we modify Mars to make it more suitable for human life? A. climate B. trace C. experience D. Trek 6. When do you think the first human walk on the surface of Mars? A. must B. should C. would D. might 7. Have you ever wondered it would be like to live on the moon? A. whether B. what C. why D. that 8. Tim asked his teacher when the first space shuttle _. A. has been launched B. will be launched C. had been launched D. was being launched 9. She wanted to know if I had met Judy at the station . A. the day after B. the next day C. the following day D. the previous day 10. I saw a UFO hovering above my back garden. - _ A. You said it! B. Very funny! C. Youre joking! D. Absolutely right! Giải thích giúp mik vs vote 5 sao+ lời giải hay nhất+tim