Nobody noticed the thief slip into the house because the lights happened to__________.
| A．put up | B．give in | C．be turned on | D．go out |
---- Have you been here long?
---- _______.
| A．No, not very long | B．Not much long |
| C．Yes, only little long | D．No, only yesterday |
________ mud on his trousers brushes off easily.
| A．Drying | B．Having dried | C．Being dry | D．Dried |
The young lady was careful _________.
| A．not repeating her mistake | B．not repeated her mistake |
| C．to not repeat her mistake | D．never to repeat her mistake |
Though they had a meeting yesterday, there is still much that remains______.
| A．to solve | B．to be solved | C．solving | D．solved |
The students expected there ________ more free time before the test.
| A．is | B．have been | C．to be | D．being |