A landing on Mars is within the _____ of current physical theory.
| A．scheme | B．scope | C．scrap | D．scale |
I don’t doubt ________ the plan will be well-conceived.
| A．that | B．whether | C．why | D．when |
—Shall I begin the lecture?
—I’m afraid we have to wait for a while. John is coming with a microphone.
— ______. I can do without the microphone.
| A．I’m sorry | B．Excuse me | C．I beg your pardon | D．Never mind |
-----Let’s go to a place _______ we can make a round—trip in one day?
------What about one _______ we can climb and swim?
| A．to which; where | B．where; where | C．where; in which | D．in which; where http:/ |
— I’m going to travel to Sydney. Would you please tell me about your experiences there?
— .Let’s discuss it over lunch.
| A．Go ahead | B．It just depends | C．That’s wonderful | D．By all means |
She told me she hadn't enjoyed the film, but I decided to go and see it _____.
| A．after all | B．in all | C．all the same | D．above all |