6.Although they are brothers, he’s not ______ as good-looking as his brother.
Such a hard problem ________ that I ________ gave it up .
Is the painting you’d like _______ to your friend _____ that belongs to your brother !
The student’s behavior cost the teacher a steepless night . He never thought his student ______ computer games for a whole class .
The person ________ the murder and he is ________ to be sentenced .
A ship loaded with expensive goods was reported ________ into the sea with its oil ________ .