题文
Having a trip abroad is certainly good for the old couple, but it remains________whether they will enjoy it.
| A．to see |
| B．to be seen |
| C．seeing |
| D．seen |
推荐试卷
Having a trip abroad is certainly good for the old couple, but it remains________whether they will enjoy it.
| A．to see |
| B．to be seen |
| C．seeing |
| D．seen |
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