They have to explain ______ us the reason _____ their doing so.
| A．/; of | B．with; about | C．/; for | D．to; for |
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So before I go any further I want to thank you very much for inviting me to __________ this important conference.
| A．participate in | B．join to | C．take part | D．attend to |
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On cold mornings, after washing your hair, you’d better dry it ______ using a hairdryer.
| A．on | B．up | C．out | D．at |
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The soup was cold, but ______ the meal was excellent.
| A．otherwise | B．yet | C．already | D．rather |
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The woman hurried to the airport, _________ that the plane had taken off.
| A．only being told | B．only to be told | C．only to tell | D．only having told |
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It is suggested that medicine should not be kept where it is __________ to little children.
| A．acceptable | B．accessible | C．available | D．preferable |