IN MY EXPERIMENTS, THE LIQUID IS COOLED TO 32ºF. IT ALWAYS FRE...
Câu 21. In my experiments, the liquid is cooled to 32ºF. It always freezes.A. If you cool the liquid to 32 degrees, it froze.B. If you cooled the liquid to 32 degrees, it would freeze.C. If you cool the liquid to 32 degrees, it will freeze.D. If you had cooled the liquid to 32 degrees, it would have frozen.