-- Mike looks ________. What happened?-- He can’t find his MP4 anywhere.
"The volleyball must belong to Mary" means_________
My grandpa is _________ weak ______ look after himself.He needs help.
When they heard the ___________ news,they got very ___________.
I don't know _______.Can you tell me________?
----How do you improve your listening skill, Mary? ----I often do it _______ tapes and English radios.