He raised ______ for the charity to help the poor children.
—How does Jack usually go to school? --He_____a bike, but now he_____there to keep healthy.
—Tom, please wash the fruit more times. --I see. People use chemicals______on their fields.
—Little Kate went to the concert_______it rained heavily yesterday.
—How do you study____ a test? --I study____working_______my classmates.
—Tom isn’t feeling very well. —He seems to have a cold the weather changes suddenly.