Digestion begins in the mouth. As you chew, saliva starts to break down some of the food, and your tongue helps form it into a ball that you can swallow. Where does digestion begin?
Penguins cannot fly, but they are excellent swimmers. Their wings work like flippers, and they can dive deep to catch fish. How do penguins use their wings?
The Dead Sea, between Israel and Jordan, is so salty that people can float on its surface without trying. Very few living things can survive in its water. Why can people float easily in the Dead Sea?
Unlike most fish, the salmon is born in fresh water, travels to the ocean to grow and then returns to the same river to lay its eggs. Which choice best summarises the passage?
The library’s new rule states: “Mobile phones must be set to silent in the reading room. Calls may be taken in the lobby.” Where may visitors take phone calls?
“The new phone is lighter, has a bigger screen and lasts longer on a single charge than the old model. It also costs more.” Which is a disadvantage of the new phone?
A parking garage charges “$3 for the first hour and $2 for each additional hour or part of an hour.” A visitor parks for 3 hours and 20 minutes. How much does the visitor pay?
“Every year, Grandpa planted one more apple tree. When people asked why, since he would not live to see them fruit, he smiled and said, ‘They are not for me.’” What does Grandpa’s answer suggest?
ステップごとの詳しい解答：このトピックは examproblems.com で練習できます。