He asked me whether my brother ________ (fly) to Beijing.
had flown
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Ihavebeenstudyinghereforfouryears,bynextsummerI________.
Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice
Night________(fall),wehurriedhome.
Matteristhename________(give)toeverythingwhichhasweightandoccupiesspace.
Thisdiploma(畢業文憑)________thatyouhavecompletedhighschool.
