—Shall I turn the heating on?
—Sure, it's so cold in here. I'm freezing.
| A．rarely | B．naturally | C．merely | D．absolutely |
His brother , who____ in the army for five years，is now running a farm in our village
| A．serves | B．served |
| C．had served | D．has served |
The Ministry of Public Security has recently started a nationwide ____speeding，overloading and running red lights.
| A．celebration | B．conference |
| C．campaign | D．ceremony |
A selfie stick is_____ enables users to position their smartphones to get better photo angles
| A．that | B．how | C．what | D．who |
He brought me a few magazines but，to my disappointment，___was to my taste.
| A．nothing | B．no one | C．neither | D．none |
The world today _____ different without the amazing discoveries produced by great scientists.
| A．were | B．had been |
| C．would be | D．would have been |