23．I’d love to join your visit to a local museum today, but I’m on a very ____ schedule —I’ve got a lot of work to do today.
| A．ideal | B．entire | C．tight | D．Suitable |
—Do you know Anna’s telephone number ?
—________. As a matter of fact, I don’t know any Anna, either.
| A．I think so. | B．I hope so. | C．I’m afraid not. | D．I’d rather not. |
The _______, I think, he drew from his simple experiment is not scientific.
| A．charge | B．conclusion | C．promise | D．relation |
Alice received an invitation from her boss, ________ came as a surprise.
| A．it | B．that | C．which | D．he |
Most people find it hard to ________Beijing Opera to foreigners because of cultural differences.
| A．get across | B．get over | C．come across | D．come over |
At the age of fifteen she gave up taking piano lessons to _____ her school work.
| A．hold on | B．call on | C．put on | D．concentrate on |