Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

Last Sunday, our volunteer team ____ a lot of food packages to homeless people in the flood-hit region.

A. were bringing

B. brought

C. have brought

D. had brought

3+4+6+8+2010+2011

=7+6+8+2010+2011

=13+8+2010+2011

=21+2010+2011

=2031+2011

=4042

a.48.19+48.115+134.52

=912+5520+6968

=13400

b.27.121-87.27+73.34

=3267-2349+2482

=3400

1650:(5.79.(125+5.49)+5.21)

=1650:[5.(79+21).(125+245)

=1650:[5.100.370]

=1650:185000

=33/3700

17.93+116.83+17.23

=1581+9628+391

=11600