_____ in her maths homework, Amy kept thinking and writing for an hour in her study.
We look forward to the day when the car will be replaced by some less dangerous_______ of transport.
The news that China is _________ its family planning policy has caused a heated discussion in China, and the new policy will _________ about 15 to 20 million people, only half of whom are actually willing to have a second child.
Nearly three months had gone by _________ the seriously injured girl showed a slight sign of recovery.
The young backpacker always ____________ at the youth hostel when he’s in Kathmandu.
The ____________ of news that a flood is coming is a staff working in the weather bureau.