来自高洪亮的问题
用所给动词的适当形式填空They_____(see)theelephantseveraltimes.
用所给动词的适当形式填空They_____(see)theelephantseveraltimes.


用所给动词的适当形式填空They_____(see)theelephantseveraltimes.
用所给动词的适当形式填空They_____(see)theelephantseveraltimes.
haveseen