—We all had a lot of fun at the barbecue yesterday．Pity you weren’t there.
—I really should have gone with you but I _____ on some remaining problems.
| A．worked | B．was working |
| C．would work | D．would have worked |
I think I was at school, _______I was staying with a friend during the vacation when I heard the news.
| A．even so | B．and then | C．so that | D．or else |
He is _____as a leader but he hasn’t_____in teaching.
| A．success; many experiences |
| B．a success; much experience |
| C．great success; an experience |
| D．a great success; a lot of experiences |
The mistakes made by Chinese students are quite different from ________made by the Japanese students in English study.
| A．That | B．which | C．what | D．those |
As _______rule, apples are sold by _____weight and eggs by ________dozen.
| A．a; 不填；the | B．a; the; the | C．a; a; the | D．the; 不填；不填 |
He knows so much about the story. He must have read the book, _______?
| A．mustn’t he | B．doesn’t he | C．hasn’t he | D．didn’t he |