单项选择题

Whenever I met him, () was fairly frequent, () I liked his sweet and hopeful smile.

A．which; 不填
B．that; that
C．it; that
D．what; 不填

相关考题

()you are free, why not go skating with us A．Because B．...

单项选择题()you are free, why not go skating with us

A．Because
B．Since
C．As
D．For