Some pictures of the river brought the days back to the old they swam in it .
| A．when | B．that | C．who | D．where |
Of all the works Stevenson has written, Treasure Island is probably his _______ work.
| A．well-known | B．more-known | C．most-known | D．best-known |
The reason for their failure, you know, was _______ they didn’t get fully prepared for it.
| A．why | B．whether | C．that | D．what |
John promised his parents he _______ not smoke again, and he has not smoked ever since.
| A．would | B．could | C．should | D．might |
My brother left home five years ago. I _______ nothing from him up to now.
| A．hear | B．heard | C．have heard | D．had heard |
The power to our region has been _______ by the heavy snow.
| A．cut off | B．cut down | C．cut away | D．cut up |