三边长分别为5cm，4cm，3cm的三角形的面积是（  ）

    What do Richard Branson, Jack Dorsey, and Michelle Obama all have in common? Besides being ____(extreme) successful, each of them is known for____(wake) up very early. The three famous persons' examples tell us how this habit can make a____(different) in life,____can help you ,too.

    Early rising is helpful in more than one way. To begin with, it helps us to have good health. The air is never____fresh as early in the morning. Early rising gives you time to take exercise. Besides, early rising helps us in our studies. In the morning we learn more quickly and find____Easy to learn something by heart. At last, early rising makes people able____(plan) the work for the day. We can't work well____a good plan. Just as a year's plan starts with spring, the plan for the day ought to____(make) in the morning. Therefore, if you want to____(success),it's a good idea to jump out of bed earlier.

A: What a wonderful museum!

B: It's great, isn't it?

A: Let's go to the Animal Room on the second floor. I need some ____ for my science report.

B: Me, too. Let's go.

A: Hey, Gina! Come and see the money exhibition!

B: Be ____, please, Jack! You mustn't shout loudly in the museum.

A: Oh, I'm sorry. Look at the monkey's tail! I've got to get in here...

B: Stop! Don't ____ the rope!

A: Oh. Why not?

B: Can't you see the ____? "No entry (进入)."

A: Oh, right. That's no good! Well, I'll just take a ____ with my camera then...

B: You can't do that, either. It's ____ the rule in the museum.

A: There certainly are a lot of rules in the museum. No wonder there are ____ people in this place.

B: Oh, my dear!

A: What's the matter, Gina?

B: My mobile phone! It's ____! What am I going to do?

A: Don't worry. We'd better go to the lost and found office. If someone finds it, they will ____ it there.

B: That phone is new! I have to find it, or Mum will ____ me!

A: I'm sure it will be all right, Gina. Let's go and see.

B: Yes, let's go downstairs.