27. Since 1994, the glacier in Antarctica has lowered by as much as 90cm, ______________sea level to rise.
| A．having caused | B．causing | C．caused | D．being caused |
Ballet is not popular our city because most people think it is too expensive to take the classes.
| A．in | B．with | C．among | D．on |
— you read the newspaper?
—Yes. I it on the bus while I was on my way to work.
| A．Have ; read | B．Did; read | C．Have; have read | D．Did; have read |
The musical “Butterfly” next week is a love story.
| A．produced | B．being produced | C．to be produced | D．having been produced |
I was sleepy. I decided to make myself some coffee so I could work.
| A．weak; better | B．strong; well | C．strong; better | D．weak; well |
Matters much the headmaster supports our activity.
| A．It; whether | B．What; whether | C．As; that | D．That; if |