Ashley Understanding Obligations and Options

What does "have to" express?

• A suggestion

• An obligation

• A question

• An option

Fill in the blank: We ________ recycle more to protect the environment.

• has to

• have to

• had to

• will

Tags

NGSS.MS-ESS3-3

Choose the correct sentence:

• Factories have to stop polluting rivers.

• Factories has to stop polluting rivers.

• Factories have stop polluting rivers.

• Factories has stop polluting rivers.

What is the correct negative form of "have to"?

• Don’t have to

• Doesn’t have to

• No have to

• Didn’t have to

Fill in the blank: Plastic bags ________ be replaced with reusable ones.

• have to

• has to

• don’t

• can

Tags

NGSS.MS-LS2-5

What does this sentence mean? "We have to protect the forests."

• Protecting forests is necessary.

• Protecting forests is optional.

• Protecting forests is not allowed.

• Protecting forests is harmful.

Tags

NGSS.MS-LS2-5

Fill in the blank: To save marine life, we ________ stop using single-use plastics.

• has to

• have to

• can

• must

Tags

NGSS.MS-LS2-4

Choose the correct sentence:

• People has to plant trees.

• People have to plant trees.

• People have plant trees.

• People has plant trees.

What does "don’t have to" mean?

• It is necessary.

• It is optional.

• It is forbidden.

• It is impossible.

Fill in the blank: We ________ turn off the lights when we leave a room.

• have to

• has to

• will

• don’t