问题
If you _____ his wife’s income____his own，the totalof their income _____ 3000 yuan.
A:add; to; will add up to
B:add; to; adds to
C:add up; to; adds up to
D:will add; for; adds up
B:add; to; adds to
C:add up; to; adds up to
D:will add; for; adds up
正确答案是：
