A beam of light will not bend round corners unless ________ (make) to do so with the help of a reflecting device
更新时间:2024-11-15 19:22:30made
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Iknowitisn’timportantbutIcan’thelp________aboutit.
heteachertoldthemsincelight________(travel)fasterthansound,lightning________(appear)togobeforethunder.
I know it isn ’t important but I can ’t help ________ about it.
The floor does not look so bad when ________ (sweep) clean.
Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice
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