English knowledge problem of fifth grade in primary school, urgent!

There is some juice in the bottle. Fruit juice is uncountable, so it is singular.

She has some canned chicken, but she doesn't have a can opener. (The third person uses has in the singular, where has is a notional verb, so does is used.)

Don't ride a bike on the grass. imperative sentence

There are many (sandwiches) on the table. Use the plural.

Where are the strawberries? uncountable noun

They are in the bag.

6. Look! The police are helping an old man cross the street. Present continuous tense.

7. The weather is sunny (windy) in spring. The main family table structure, adjectives as slogans.

Let's have a picnic.

Have refers to two parallel actions.

2. I am in the same class?

Yes, you are.

C, Am can I only use am

We must study hard at school.

Learning modal verbs+verb prototype structure