“I don’t think I () you, but you must be hungry. Please come in and have something to eat

【单选题】
"I don't think I () you, but you must be hungry. Please come in and have something to eat
A、the
B、do
C、know
D、what
正确答案：C
3【判断题】It is that feeling of belonging of love and security.
正确答案：√
4【判断题】The mother and father for the nucleus ,or centor of the nuciear family.
正确答案：√
5【判断题】It is a pillar ,or more corrctly a column.
正确答案：√
7章
1【单选题】_the baby wakes up three times during the night.
A、Generally
B、Traditional
C、Clear
D、Lucky
正确答案：A
2【单选题】There may _be other reasons that we don't know about.
A、however
B、but
C、because
D、how
正确答案：A