Besides Tom, ________ Crosettes have two other sons, __________ of whom are all interested in making model planes.
| A．不填; two | B．不填; the two |
| C．the, three | D．the, the three |
With several rounds of talks, the union leaders successfully an agreement for a shorter working week.
| A．deserved | B．negotiated | C．persuaded | D．demanded |
---Could you help me take care of my pet dog on the 19th?
--- I’m afraid I’m not that day.
| A．vacant | B．sufficient | C．available | D．convenient |
---My Dad began to teach me English when I was eight.
---Wow. You must have studied English for six years, ?
| A．haven’t you | B．mustn’t you | C．needn’t you | D．don’t you |
--With the country’s pension fund gap becoming wider than ever, retirement age should be postponed immediately.
---Easier said than done. we take all factors into account, we shall be faced with some other social problems.
| A．Unless | B．Until | C．When | D．Once |
-- We hadreally smoggy December this year.
--- I can’t rememberwinter when air was polluted so severely.
| A．a; / | B．a; the | C．the; the | D．a; a |