Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice
Thistest________anumberofmultiplechoicequestions.
Ihavebeenstudyinghereforfouryears,bynextsummerI________.
Onlywhenyouhaveobtainedsufficientdata________cometoasoundconclusion.
Thefloordoesnotlooksobadwhen________(sweep)clean.
Somemoleculesarelargeenough________(see)undertheelectronicmicroscope.