A beam of light will not bend round corners unless ________ (make) to do so with the help of a reflecting device
made
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Onlywhenyouhaveobtainedsufficientdata________cometoasoundconclusion.
He asked me whether my brother ________ (fly) to Beijing.
Ifound________toanswerallthequestionswithinthetimegiven.
Thefloordoesnotlooksobadwhen________(sweep)clean.
Themorewelookedatthepicture,________.
