Mother is busy _____.

题目

Mother is busy _____.
a.look after the baby b.with the baby c.take care of the baby d.look at the baby
为什么选B,叔叔、婶婶的帮助.

答案

B
句意：妈妈忙于照顾婴儿.
be busy with sth.或be busy with doing sth.都表示忙于做某事
因为前面有is,所以A,C,D中的动词都应该改为ing形式.
例如把C改为taking care of the baby 就对了.