as long as  lie in  tell...apart  so that  a variety of

1. These two signatures (签名) are so similar that it's very difficult to         .

2.        you keep on trying,I don't really mind whether you can come top in your class.

3. The fundamental way out        reform and openness.

4. They got up very early that morning        they wouldn't miss the first bus.

5.        paintings are on show in the gallery.

5. Step        your practice. As it is,you can't win the first in the coming round.

4. The mayor of the city receives 50        letters about different matters a day       average.

3. Seeing what is socalled a monster,the villagers began to run        it secretly.

2. The experts all came late to the meeting,due        the bad storm.

1. The concert is beginning but the stars haven't shown        so far,causing a great mess.

10. As technology continues to advance,we must learn and adapt        (instant) or we'll risk becoming a dinosaur.

9. The job which is        (clarify) all the tools in a factory is boring to me.

8. Cathy is taking notes of the        (grammar) rules in class at Sunshine School,where she has been studying English for a year.

7. It took more than building supplies to construct these energysaving houses. It        (take) brains,too.