Gunpowder was used extensively in firearms prior to 1990.

单项选择题John talked over the new job with his wife.

单项选择题The team's spirit was at the lowest point in the season.

单项选择题What can you do to ensure that you will stay healthy

单项选择题The town is famous for its magnificent church towers.

单项选择题Mary had sold her bike, taken a driving test and bought a car.