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All the photographs in this book, _______ stated otherwise, date from the 1950s.
| A．unless | B．until | C．once | D．if |
Experts point out ____ we eat healthy food every day, we still need to do much exercise regularly to keep fit.
| A．that although | B．that even | C．that as | D．whether |
It was a small room, _ _it offered a fine view of the old city．
| A．so | B．for | C．or | D．but |
The only way to succeed at the highest level is to have total belief _____ you are better than anyone else on the sports field.
| A．how | B．that | C．which | D．whether |
the whole process for the studies of cancer took more than a year, the technology is moving so fast that it will soon take just weeks．
| A．How | B．Because | C．If | D．While |
________ you didn't know the rules won't be an excuse for your failure to report.
| A．That | B．Where | C．What | D．Why |