_______ the rain falling so hard, it becomes more and more difficult to carry on the rescue work.
| A．Since | B．As | C．With | D．For |
When she was in trouble, I did what I could to help her.my help, she wrote me a letter of thanks.
| A．In honor of | B．In case of | C．In terms of | D．In return for |
It rained heavily in the south， serious flooding in several provinces.
| A．causing | B．having caused | C．caused | D．to cause |
A government official was murdered last Friday and the police are collecting information that is to the case.
| A．similar | B．devoted | C．relevant | D．addicted |
It is clear that ________ little money the invention will bring him can hardly support so large ________ company.
| A．/; the | B．the; a | C．a; / | D．a; the |
—Everybody is going to climb the mountain . Can I go too , mom ?
— ______ Wait till you are old enough ,dear.
| A．Will you | B．Why not ? | C．I hope so. | D．I’m afraid not. |