一个两位数,它既是偶数,又有因数5,而且还是3的倍数,那么这个数最大是______,这个数的质因数的和是______。
11. Though I have often heard this song ______, I have never heard you ______ it.
____________, they have been struggling against the snowstorm for ten hours.
Our teacher looked here and there on our playground ________ looking for something.
The country itself didn’t have enough gas because of the war, so the government decided to ________ its gas supplies to other countries.
In order not to let the others hear what he said, he ________ the news to me.