The first textbooks ______ for teaching English as a foreign language came out in the 16th century.
| A．having written | B．to be written |
| C．being written | D．written |
—He must be busy doing his homework right now.
—I imagine____.
| A．that | B．to | C．so | D．it |
Lu Xun was ___________ medical student before he turned ___________ great writer.
| A．the; the | B．the; a | C．a; / | D．a; a |
The mother often tells her son to be a good boy, warning him to______ trouble.
| A．hold back from | B．keep out of | C．break away from | D．get rid of |
After five hours’ drive, they reached ______ they thought was the place they’d been dreaming of.
| A．that | B．where | C．which | D．what |
John has put on so much weight recently that his mother has to______ all his trousers to his measure.
| A．let out | B．give away | C．bring in | D．make up |