I’m thinking of the test tomorrow. I’mafraid I can’t pass it. -_______! I’m sure you’ll make it.

下列各句中，加点的成语使用不恰当的一句是

He looks sad. Let’s cheer him up.

Do you often hear John ___ in hisroom –Yes. Listen! Now we can hear him ___ in his room.

It__________details about pricing for the 2012 London Olympics will be available．