Tian'anmen Square is the largest square in the world, which covers a total area of 440,000 square meters, 880 meters north to south, and 500 meters east to west.
| A．measured | B．to measure |
| C．being measured | D．measuring |
Out of __________ question, it’s______ great fun to explore new places-----it feels like an adventure, even when you know you’re not the first to have been there.
| A．the; a | B．the; / | C．/;a | D．/’/ |
—Hi, Johnson, any idea where Susan is?
—It’s class time, so she _____ in the classroom now.
| A．can be | B．must have been |
| C．might have been | D．should be |
Many people have applied for a job with our company, but we only have one or two ______ positions at the moment.
| A．empty | B．vacant | C．permanent | D．adequate |
—Hello, is Mr Smith in?
—Sorry, there is no such person _______ you referred to in my office.
| A．that | B．as |
| C．who | D．whom |
Medical doctors sometimes can make mistakes _______ will cost ________.
| A．that; patients their lives |
| B．what; patients their lives |
| C．which; patients for their lives |
| D．that; patients with their lives |