A 3G mobile phone, ______to be most useful and fashionable, is popular with some teenagers.
—Is it necessary to look up every new word when I come across it in reading? —No. You ________, because you are likely to guess the meaning from the context.
The blind boy has gift for learning the sound in distance.
— Do you enjoy watching stand-up comedy? —. I prefer to watch science fiction movies.
You are _________ to have such a good teacher.
His computer, which cost him a sum of money several weeks ago, is out of order and wants _______, though it looks very new.