1 . Always chew food well before ______ (swallow) it. If not, it will lead to indigestion (消化不良). (所给词的适当形式填空)

2 . Look! A frog ________   ________(swallow) by a snake over there. (所给词的适当形式填空)

3 . Some books are to be tasted, others_________(swallow), and some few to be chewed (咀嚼) and digested. (所给词的适当形式填空)

4 . Chewing too fast can cause you_________(swallow)too much air. (所给词的适当形式填空)

5 . Most of my salary gets s____________ up by the rent and bills.

6 . It didn’t take long before the big fire swallowed ________ the whole building. (用适当的词填空)

7 . The firefighter had a few ________ (swallow) of water and hurried out. (所给词的适当形式填空)

8 . In fact, the chances of anybody ________（swallow）by a whale are rather low. （所给词的适当形式填空）

9 . ________ (swallow) the pill, the man turned into stone.

10 . I put so much food in my mouth sometimes that it was hard__________(swallow).（所给词的适当形式填空）