6.After the long journey,the Smiths returned home,____.( )
A. | safely but tired | B. | safe but tired | ||
C. | safe and tiring | D. | safely and tiring |
5.Not until they left school ______ how much their teachers loved them and helped them.( )
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A. | they realized | B. | had they realized | ||
C. | they would realize | D. | did they realize |