If it ________ for the heavy rain then, we would have arrived here ahead of time.
After staying in room for weeks, the lady was advised to go to the outside world to ______ her confidence as well as health.
It ______ to me that I might try this way to deal with this problem.
—The tree is so tall. —Yes. It ______nearly 20 metres.
Most of the Europeans refuse to accept GM food ______Americans regard it as the fruit from high tech.
Not only John and Tom but also their sister, Mary, ______great interest in the piano lessons.