【题目】Had I made good use of this software, a huge amount of time and energy _________.

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【题目】He hurried home, only_________ his keys had been left in the office.

【题目】After all, reputation is a treasure ________ once lost, can never be won back.

【题目】He is the only one of the students _________ able to speak both English and Japanese well.

【题目】It was _________ he entered university _________ he got on well with his parents.

【题目】I don’t like ______ you talk to your mother.

【题目】What the children in the mountain village need ________ good books.

【题目】Rather than carry out the project by itself, the company planned to _________ with other potential cooperators.

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