please check my Grammer Mistakes !!!!!!!!

[Noor92]

1- This experiment did on 5 month old child. At this age, the children start to have a since of controlling the motivation of hands and he/she try to hold up or pushing things. It is focusing on how the 10 month child can control his/her two hands.
2- She lives with her parents and one sister.
3- We will wait her reaction.
4- Our seeing during the test.

5- They allowed us to take a sample video.

7- she closed her arms with strictly close of thump.

[JohnParis]

Are you describing the results of an experiment or are these just random sentences?
If sentence 1 concerns a completed experiment, it should be written in the past tense. Several choices of vocabulary in sentence 1 are incorrect.

2. acceptable sentence

3. We will wait for her reaction.

4. not a complete sentence.

5. acceptable sentence.

7. with strictly close of thump has no meaning in this phrase. Do you mean "she crossed her arms with..." ?

Try again and I'll look at your answers.
John

[Rover_KE]

. . .and for future reference, Noor, note the spelling of grammar.

It is incorrect to capitalise grammar mistakes and there's no need for an exclamation mark - let alone seven.

Rover

[SoothingDave]

We will wait for her reaction.

or "We will await her reaction."