—Oh, doctor, The wound on my leg is infected.
—You really shouldn’t have left it _______ to the sun.
| A．discovered | B．exposed | C．opened | D．buried |
相关试题
The water will be polluted unless some measures _____.
| A．will be taken | B．are being taken | C．are taken | D．were taken |
His way of speaking suggested that he ____ very angry.
| A．should be | B．be | C．is | D．was |
Pine trees, of which there are almost one hundred ____, are found throughout the North Temperate Zone.
| A．species | B．samples | C．specimens | D．Standards |
The salmon dish was _______, wasn’t it?
| A．success | B．the success | C．a success | D．successes |
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