5. we were all there when the accident(事故)occurred.
a.happened ( 發生)
b. broke (打破,弄破,中斷)
c. spread (傳播, 伸展)
d. appeared (出現,顯得)
[解析]:occur: v.1發生 ; 2 出現,存在
6. it took me exactly (正好,恰好)a week to complete
the work.
a. do (做)
b. achieve (完成功績, 達到,實現)
c.improve (改善,增進,提高) d.
finish (完成)
[解析]:complete 完成, 使完整; it took sb some time to
do sth