The first textbooks _____ for teaching English as a foreign language came out in the 16th century.
| A．being heard | B．to be written | C．being written | D．written |
When you finish reading the book, you will have ________ better understanding of ______ life.
| A．a; / | B．the; a | C．/; the | D．a; the |
When the police arrived, the crowd made off _____ all directions.
| A．in | B．to | C．at | D．for |
Recently, employees at the Shanghai Metro’s Railway Station Stop have been busy learning dialects from other parts of the country, ___________ aims to provide better service to travelers from outside the city.
| A．where | B．that | C．which | D．it |
Professor Smith, along with his assistants, ________ on the project day and night to meet the deadline.
| A．work | B．working | C．are working | D．is working |
________ your composition carefully, some spelling mistakes can be avoided.
| A．Having checked | B．Check | C．If you check | D．To check |