选择 The water is( )in the kettle A.boil B.boiling C.to boil D
选择 The water is( )in the kettle A.boil B.boiling C.to boil D
People must drink ( ) water.A.boiled B.boil C.boiling D.to b
water.at 212F.A.boil B.boils C.boiled.D.is boiling
What happens when water ______?A.to boil B.boiling C.will bo
when the kettle ,will you make some tea?A.boil B.boils C.boi
Kitty the water _____(boil).Please take the kettle off
( )What happens when water__? A.to boil B.boiling C.will boi
100C is the temperture at ______ water will boil.
The water is _________ (boil) now .
The water is watched ______(boil)now
The temperature ________water begins to boil is 100 C.
The water in the kettle is boiling and we can see steam comi