The students will have science instead maths. the maths teacher has fallen ill. a) off b) of c) from there are plenty ways to cook this tasty dish. a) of b) on c) in carol was responsible the rare tropical plant, wasn*t she? a) on b) at c) for could you help me my homework? yes, i will try. a) on b) with c) of the students felt sorry their new classmate. a) of b) for c) on may i come ? yes, you may. a) out b) on c) in