Billy, come and give me a hand with cooking.
Giải chi tiết:
Đáp án là B. Give sb a hand = help : giúp đỡ
Attempt (v): cố gắng; prepared (adj, PII ): được chuẩn bị; busy (adj): bận rộn
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.