He ______to swim across the Channel, but they failed because of the terrible weather.
| A．succeeded | B．managed | C．attempted | D．thought |
There is no _____ that taking regular physical exercise is good for your heart.
| A．need | B．sense | C．worry | D．doubt |
Without ____electricity, how can we search for information on ____Internet?
| A．/; a | B．/; the | C．the; the | D．the; a |
—Shall we go out for dinner or cook at home?
—___________. It’s up to you.
| A．I don’t mind | B．That’s all right | C．Good idea | D．I’m OK. |
Many people claim that they have seen UFO with their own eyes, _____ I personally doubt.
| A．that | B．which | C．when | D．where |
—You _____ a meal this evening. I had dinner at a restaurant with Tom.
—Well, why didn’t you phone me and let me know?
| A．should not cook | B．don’t need to cook |
| C．needn’t have cooked | D．should have cooked |