___ the fact that he found math boring, he was still good at it.        

You can’t go out since you haven’t finished your homework；      ，it is a stormy night．

The Minister of France stresses that the quality of goods , _______ the quantity of production , is the key to improving the nation’s economy .

.Mary quickly closed the door of her room _______ her father could reach it to keep him out.

I recognized the man _______ he came into the room.