Question

【题目】— How many children are there in your family?
— There is .
A.only two
B.only one
C.only some
D.some

Answer 1

【答案】B
【解析】only 仅仅，只有，答句There is 后面必须跟单数名词，故选B。only one 只有一个。句意是：—你家有几个孩子？—只有一个。