This is our contribution to ________ world of the 21st century, ________ world of independence and mutual understanding.
| A．the; / | B．/; a | C．a; the | D．the; a |
US house prices has risen by 12.4% over the 12 months to the end of July, completely ______his plan to buy another apartment.
| A．ruined | B．ruining | C．to ruin | D．ruins |
She had to work deep into the night, ______she couldn't have spread the messages to all the relevant people successfully.
| A．while | B．but | C．otherwise | D．so |
Hello, Tom. What a coincidence! I ______ about you. And here you are.
| A．was just thinking | B．just thought | C．have just thought | D．would just think |
E-Commerce ______ mislead customers at times even though it's more convenient and faster in general.
| A．shall | B．should | C．can | D．must |
The School Art Festival has set up a stage ______students can show their talents.
| A．which | B．where | C．that | D．when |