Without these preventive measures, television picture would become unclear and fragmented.

A. Organic farming can reduce soil erosion.
B. Organic crops produce lower yields.
C. Organically grown food tastes strange.
D. Organic farming is better for the environment,

A. The train to the Market Square is cancelled.
B. The man has missed the train to the Market Square.
C. The next train will leave in ten minutes.
D. The man has come to a wrong station.