word choice: This cloth ... very thin

[Sung_Tung]

1 This cloth ......very thin
A feels B touches C holds D handles

I choose A but the answer is D. Can any one explain it to me?

[Mister Micawber]

The answer key is incorrect.
_________________
Native English teacher at Mister Micawber's

[Sung_Tung]

2 After the accident, there was a considerable doubt _______exactly what had happened
A in the question of B as to C in the shape of D for
I choose D but the answer is B. Which is correct?

3, The little boy was continually _______the ornaments
A tripping up B falling down C breaking up D knocking over
The answer is D. What does 'knock over' mean?

Thanks very much for your consideration!

[Mister Micawber]

2-- B is correct. 'Doubt for' is not an English collocation.
3-- 'Knock over' = upset, cause to overturn from an upright or normal position.
_________________
Native English teacher at Mister Micawber's