A．warmB．hotC．coolD．cold

A．coolB．nuclearC．StarD．Cold

To stay warm in cold weather, cold－blooded animals must expose itself to a source of warmt

Countries around the Equator have the（)climate.A、sub－tropicalB、hotC、tropicalD、cold

It is _____ to go swimming today .A.very warmB.enough warmC.too warmD.warm enough

A long journey in cold weather is dreadfully

A long journey in cold weather is dreadfully