| The scientists all over the world are trying their best to develop _____ energy, such as sunlight, wind and water for power and fuel. |
A. unique B. alternative C. primary D. instant |
| 一I really have no time to deal with my dirty clothes. Do you often have your clothes _____, Rose? — No. I wash them by myself. |
A. washed B. washing C. to be washed D. to wash |
| You are supposed to read your article carefully and get it polished _____ you submit it. |
A. until B. when C. before D. after |
| "China Daily", whose editorial office is in Beijing, also has _____ in all major cities in China. |
A. branches B. companies C. organizations D. businesses |
| Not a single word _____ when _____ about his late mother. |
A. he said, asked B. did he say, asked C. he said, asking D. did he say, asking |
| It was in the garden of his old house _____ he grew up that he dug up a pot of gold. |
A. that B. where C. which D. what |
| A well-written composition _____ good choice of words and clear organization among other things. |
A. calls on B. calls up C. calls for D. calls off |