1.I do every single bit of housework,_____ my husband Bob just dose the dishes now and then.

题目

1.I do every single bit of housework,_____ my husband Bob just dose the dishes now and then.
a.since
b.while
c.when
d.as
2.While watching TV,____.
a.we heard the doorbell rings
b.we heard the doorbell ring
选什么以及为什么

答案

B.while
while有然而的意思,后半句是说然而我的丈夫只是偶尔的洗洗碗.now and then是偶尔的意思.
A.we heard the doorbell rings
doorbell是主语,并且是可数名词单数,谓语动词加S.