People tend to love agricultural products ________ without the use of fertilizers, pesticides or chemical additives.
After many experiments, finally we __________ the material we wanted very much.
The water __________ the sand soon disappeared.
Mobile phones __________ in China are well worth trusting for many reasons.
In the last few years thousands of films __________ all over the world.
Sam___________ some knowledge of the computer just by watching others working on it.