The boy went swimming in the deep lake,________ his mother’s fear for his safety.
---Did Peter fix the computer himself? ---He, because he doesn’t know much about computers.
the lack of water and food, the homeless have to deal with the cold weather.
________many times, but he still couldn’t remember my phone number.
When he retells a story , sometimes he ___________ the key points.
Tom is senior _______ most other students in our class .