It remains __________ whether the medicine will work on the human body.
| A．seen |
| B．to seen |
| C．seeing |
| D．to be seen |
相关试题
—Have you got used to the Chinese food, Huang Yan?
—Yes, but I hate ________ when a Chinese host keeps serving me the food I don’t like.
| A．this | B．that | C．those | D．it |
I have no dreams _______ to have a happy life.
| A．rather than | B．better than | C．other than | D．less than |
Many people can’t learn any lessons from the mistakes they’ve made they get hurt somehow.
| A．whether | B．unless | C．if | D．as |
—Amazing! You wear slippers at work.
—Don’t you know it’s a fashion?
| A．must | B．should | C．can | D．may |
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