选出划线部分的英文注释
---When did your mother return? ---Last night.

A．leave

B．come back

C．give back

D．turn

Are you good at your schoolwork?

A．Are you good for	B．Do you like
C．Did you do well in	D．Are you good with

He flew to Shanghai yesterday.

A．went to Shanghai by plane	B．moved to Shanghai
C．lived in Shanghai	D．went to Shanghai

Would you like to take part in our club?

A．join with

B．join

C．come to

D．work for

I have to stay at home and baby-sit my sister.

A．have a baby

B．take care

C．look after

D．watch