The letter is from my sister, ______is working in Beijing.

_______can I improve my pronunciation—-One way is listening to tapes.

After three hours, I arrived in Penang in Malaysia with my family.

The doctor was busy writing an essay in ________ with his recent research.

What’s going on between you and Peter? —We had a fightI regarded him as my trustworthy friend_____ to my shock, he gave me away.[ ]