—According to the weather report, there is likely to be heavy rain tomorrow.
—_______, we’ll have to change the plan for the outgoing.
| A．If so | B．If not | C．Unless so | D．Unless not |
It took ______ building supplies to construct these energy-saving houses. It took brains, too.
| A．other than | B．more than | C．rather than | D．less than |
Over the past decades, sea ice _____ in the Arctic as a result of global warming.
| A．had decreased | B．more than | C．attach | D．apply |
The medicine works more effectively ______ you drink some hot water after taking it.
| A．as | B．until | C．although | D．if |
There is a great deal of evidencethat music activities engage different parts of the brain.
| A． | indicate | B． | indicating | C． | to indicate | D． | to be indicating |
The system has been designed to give students quick and easy ______ to the digital resources of the library.
| A．access | B．passage | C．way | D．approach |