THEY HAVE A LOT OF EXTENSIVE：They have _________ a lot of extensive research into renewable

they have a lot of extensive   they In the course of its history, human inventions have dramatically increased the average amount of energy available for use per person. Primitive peoples in cold regions burned wood and animal dung to heat their caves, cook food, and drive off animals by fire

they had a boy They had a boy _____ that yesterday. Tel: 024.7300.7989 - Phone: 1800.6947 Thời gian hỗ trợ từ 7h đến 22h Đăng nhập; Đăng kí

because they are a very close family Because they are a close family, there is probably nothing that can break their _____. A. share B. contribution C. solidarity D. group