--Did you ring him up this morning? ---Yes, but I couldn't ___.
| A．get on | B．get over | C．get through | D．get across |
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 |