John is very lazy. He falls ______ behind among the students.
A. very B. still C. more D. far
The government must be very _____ about setting policies and make no decision until they are quite sure it is the right one.
A. particular B. concerned C. cautious D. certain
I don’t understand how he can say that everything is fine _____ it’s so obvious that it’s not.
A. unless B. in case C. so that D. when
Please remember to _____ a stamp _____ your envelope before you post it to your friend.
A. attach; to B. fasten; to C. tie; to D. stick; by
--- Have you heard that Mo Yan was awarded the Nobel Prize in Literature last year?
--- _____. He has made a positive contribution to that field.
A. Congratulations B. You must be joking
C. He deserves it D. By no means
The boy talked his mother _____ buying him a home computer.
A. of B. over C. to D. into
