The family finally climbed to the top of the Mount Tai, ________.

The Southern States wanted to ______ the Union, so the American Civil War ______. [ ]

Bob should love _____ to the party tomorrowevening.

Nature reserves are very important for preserving many animals and plants, which would _______ run the risk of becoming extinct

Do you often watch CBA games—Sure, and _______I watch them play in the gym.