Previously ______ at a fast food restaurant, the Smiths were dissatisfied with the unhealthy meals they served there. 
#93071
A
volunteered
B
to volunteer
C
volunteering
D
having volunteering
推荐题目
____________for children, the album became popular with Parents __________it came out.
#95025
A
Designed; when
B
Designed; immediately
C
To design; as soon as
D
Designing;as