The same questions repeated over and over soon made them weary.
Giải chi tiết:
Đáp án là B. weary = tired: mệt mỏi
Các từ còn lại: worried: lo lắng; annoyed: tức giận; suspicious: đáng nghi
Around 150 B.C. the Greek astronomer Hipparchus developed a system to classify stars according to brightness.
Population growth rates vary among regions and even among countries within the same region.