Is there any possible way to help them get rid of such a bad habit?
--- To tell the truth, it¡¯s very hard. But we   on this problem trying to improve the situation.
A£®workedB£®had workedC£®are workingD£®had been working
C
¿¼²é¶¯´Êʱ̬¡£Óï¾³ÒâÒ壺¡°Õâ¸öÎÊÌ⻹û½â¾ö£¬ÎÒÃÇÕýÔÚŬÁ¦½â¾öÕâ¸öÎÊÌ⡱£¬Òò´ËÓÃÏÖÔÚ½øÐÐʱ¡£¶Ô¶¯´Êʱ̬µÄ¿¼²éÀúÀ´ÊǸ߿¼ÊÔ¾íµÄÖصãÄÚÈÝ¡£
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÓ¢Óï À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

The flowers were so lovely that they __________ in no time.
A£®soldB£®had been sold
C£®were soldD£®would sell

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÓ¢Óï À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

The children £ß£ß£ß£ß£ß£ß very quiet£» I wonder what they £ß£ß£ß£ßup to.
A£®were£» are beingB£®are being£» are C£®are£» doD£®are being£» do

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÓ¢Óï À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

She £ß£ß£ß£ß£ß to the office than she got down to writing the report.
A£®has no sooner gotB£®had hardly got C£®no sooner gotD£®had no sooner got

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÓ¢Óï À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

¡ªYou were out when I dropped in at your house yesterday.
¡ªOh, I________ for a friend from Beijing at the railway station.
A£®was waitingB£®had waitedC£®am waitingD£®have waited

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÓ¢Óï À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

¡ªThe dinner was delicious!
¡ªI agree. I¡¯m so full.
¡ªThat¡¯s too bad. But some dessert ______.
A£®has orderedB£®will be ordered
C£®has been orderedD£®was going to be ordered

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÓ¢Óï À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

¡ªHas Sam finished his homework today?
¡ªI have no idea. He ________ it this morning.
A£®didB£®has doneC£®was doingD£®had done

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÓ¢Óï À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

I know Mr Brown£» we £ß£ß£ß£ß£ß£ß to each other at an international conference.
A£®are introducedB£®have been introduced
C£®were introducedD£®had been introduced

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÓ¢Óï À´Ô´£º²»Ïê ÌâÐÍ£ºµ¥Ñ¡Ìâ

-Has Tommy finished his homework yet??
-I have no idea; he ____ it this morning.
A£®was doingB£®had been doingC£®has doneD£®did

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸