It's ____________ to play computer games on weekends.
A：relax
B：relaxed
C：relaxes
D：relaxing
一个奇数与一个偶数相加的和 （ ）
近几年，雾霾问题日趋严重。下列做法中会加重雾霾的是（ ）
The dining hall is __________ to hold 300 people
