Revise the colours and teach them extra sentences to describe a fruit. You can then describe a fruit and the pupils tell you which one it is in French.
\nLet the pupil describe some fruits for the rest of the class to guess.
\nBat le prof: The teacher stands by the board. Point at an item and say its name in French. Pupils have to repeat only if you say the correct word. If the whole class stays quiet when you say something wrong, they get a point, if they start repeating the wrong word, the teacher gets a point!