s preparing for the IELTS, so he hasto_____ his visit to Beijing

The traditional view is ________ we sleep because our brain is “programmed” to make us do so

The number of the books in our library _________ about 20,000.

When Stan was five years old, his father died in a traffic accident, leaving his mother to _____ three children alone.

How much would you______for repairing my bike