2012年8月22日， 正式成为世界贸易组织第156个成员。世界贸易组织将最后一个重要经济体也纳入国际贸易规则之内，将覆盖98%国际贸易。（ ）
| A．加拿大 | B．中国 | C．俄罗斯 | D．日本 |
It will be ___ wonderful world if all nations live in ___ peace with each other.
| A．a；a | B．the；the | C．a；the | D．a ；/ |
_________ more customers, many companies prefer to spend a lot of money in advertising.
| A．Attract | B．Attracting | C．Attracted | D．To attract |
_______, women have changed history in terms of the contributions they have made.
| A．To some extent | B．In conclusion | C．In addition | D．As a whole |
All the preparations for the task _______, and we’re ready to start.
| A．complete | B．have completed |
| C．had been completed | D．have been completed |
—You shouldn’t have shouted at your mother. It really hurt her.
—Exactly. I ________ crazy at the time.
| A．must be | B．could be | C．must have been | D．could have been |