Cause and appear because these words need to be singular since the other words are plural
I would say B
Because Dogs cannot talk
Haven't learned this yet, but my best guess would be D. because in the cold wars, there was the Red Scare, which was somewhat like a Witch Hunt (like the salem witch trial) except they hunted down communists and persecuted them
Answer:
b
Explanation
2h đầu đi được 100km
3h sau đi được 90km
=> AB = 190km đi trong 5h
vận tốc trung bình = 190/5=38km/h
