Mary and Ann ___ chess at the moment. a) are playing
b) were playing
c) play
d) played

A- Are playing

Mary and Ann are playing chess at the moment.

many scientists' predictions of climate change include: warmer temperatures, rising sea levels, and more frequent storms.

that is the wrong

at hatfield elementary school, there are 504 students in 7 classes. each class has the same number of students. what is a good estimate of the number of students in each class?