_______ do you write to your mother?—-Once a month.[ ]

　Chinese　tennis　player　Li　Na　won　a　championship　again!-　Yeah,　I　watched　the　game　and　my　spirits　_____　at　the　news.

The only question __________ I ask for you was how to used the computer .

The box isheavy for her carry.[ ]

“______ do you exercise?” “Three times a week.” [ ]