Science and technology is changing fast nowadays. I bought this MP3 player at the beginning of this year but now it's out of ________.
-----I stayed up late last night preparing the speech. -----__________ you look so tired today.
The little girl was afraid of having her bad tooth pulled out. The dentist tried hard to put her _____________.
Listening to loud music at rock concerts __________ caused hearing loss in some teenagers.
____________________ to the party, Joan was greatly hurt.
Now the people in that mountain village are _____________than they were 10 years ago.