Question : Improve the underlined part of the sentence. Choose 'No improvement' as an answer if the sentence is grammatically correct

Don't try to force the window open, or you might broken it.

Option 1: you might breaks

Option 2: you have break

Option 3: you might break

Option 4: No improvement

Question : Improve the underlined part of the sentence. Choose 'No improvement' as an answer if the sentence is grammatically correct.

He had thrown the wrapper into the garbage.

Option 1: throw the

Option 2: thrown the

Option 3: No improvement

Option 4: has throwing the

Question : Improve the underlined part of the sentence. Choose 'No improvement' as an answer if the sentence is grammatically correct.
Training your dog have required a lot of patience.

Option 1: require the lot

Option 2: requires a lot

Option 3: required lot

Option 4: no improvement

Question : Improve the underlined part of the sentence. Choose 'No improvement' as an answer if the sentence is grammatically correct.
This has sharp decreased the cases of water-borne diseases.

Option 1: sharp decrease

Option 2: sharply decreased

Option 3: sharper decreases

Option 4: No improvement

Question : Improve the underlined part of the sentence. Choose ‘No improvement’ as an answer if the sentence is grammatically correct.
Your parcel should arrived at three days.

Option 1: arrive in three

Option 2: arrive in third

Option 3: No improvement

Option 4: arrive in the third