I know it isn ’t important but I can ’t help ________ about it.
A、buttothinkB
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He refused to tell us whether he ________ (undertake) the job.
Ihavebeenstudyinghereforfouryears,bynextsummerI________.
Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice
Ifound________toanswerallthequestionswithinthetimegiven.
Hotmetal________asitgrowscooler.
