What happened to Danny on April Fool's Day?

He looks as clever as his mother.

According to the weather forecast, tomorrow will be cloudy.

Smoking increases the risk of cancer.

The first question: It is necessary for us to learn a foreign language.

It is necessary for us to learn a foreign language. This sentence is very important for us to learn a foreign language. It's more accurate than I need to learn a foreign language.

Question 2: What happened to Danny on April Fool's Day?

What happened to Danny on April Fool's Day? This sentence belongs to the simple past tense. What happened is the same as what happened, "happy", which is a thing of the past, so we need ed to go on. If you are used to it, it points to Danny.

Question 3: He is as clever as his mother.

He looks as clever as his mother. Because he uses two spaces, he uses appearance here, some also use appearance, and of course he can also use assembly. On the surface, there is an image meaning, but the set expresses the similarity of two things, for example, he is very similar to his father. He looks like his father.

The "image" expressed by "image" does not mean the similarity between the two, but "example", such as

I ate a lot of food, such as eggs and milk.

I ate and drank a lot of things, such as eggs and milk.

Question 4: According to the weather forecast, it will be cloudy tomorrow.

According to English, it means "according to"

According to the weather forecast, tomorrow will be cloudy.

Fifth question: Smoking will increase the risk of cancer.

What is missing here is "what added danger"

Smoking increases the risk of cancer.