John has put on so much weight recently that his mother has to______ all his trousers to his measure.
| A．let out | B．give away | C．bring in | D．make up |
Mary: Helen is a mere washer woman, yet she's now buying a big house.
Carol: Yes. Because she's always saved ________.
| A．what little she earns | B．how little she earns |
| C．for little she earns | D．with little she earns |
Output is now six times ________ it was before liberation.
| A．that | B．which | C．what | D．of which |
"Why did you go to the wrong class, Mr. Wang "
"Well, I forget _______ I was supposed to go to."
| A．which the room | B．which room |
| C．what was the room | D．what room was it |
I don't doubt ________ he'll come.
| A．that | B．if | C．what | D．whether |
Why the explosion occurred was ____the laboratory attendant had been careless.
| A．for | B．because | C．since | D．that |