1.用abandon，desert的適當形式填空
(1)They their sinking ship.
(2)Mike just his girlfriend when he met his manager‟s daughter.
(3)The scientist his research for lack of fund.
2.用preserve，protect或defend的適當形式填空
(1)He was anxious to his reputation.
(2)In summer，we should try to our skin from the sun.
the border against possible attacks.
(4)Kids should be from all that violence.
3.用occur，happen或take place的適當形式填空
(1)Great changes have in China since the 1980s.
(2)It suddenly to me that we could ask our friends to help us.
(3)So far Tom hasn‟t showed up;what has to him?
(4)At that moment，a good idea to me.
4.用gather，collect的適當形式填空
(1)A lot of people in the street.
(2)We a lot of money for the Hope Project.
(3)A crowd to watch the fight.