He suddenly found __ watch on the ground.
---What do you think of the furniture on exhibition?--- Well, great! But I don’t think much of ____ you bought.
To improve the quality of our products, we asked for suggestions _____ had used the products.
---Why don’t you turn to Professor Lee for some advice?--- _____. What if he refuses to help or something?
The birds ran away______ all directions_______ they caught sight of a man coming near.
It is beyond my understanding that many adults ______ be so crazy about Harry Potter series.