Which is the most appropriate passive form for the sentence? "One should keep ones promises"

The most appropriate conversion to simple sentence from the compound sentence "We must eat, or we cannot live", is

In which classification of work can we categorise teaching?

Choose the most appropriate a complementary closing for a letter
addressed to Sub-Inspector of Police:

In the following question, the passage consists of six sentences. The first and last sentences are given in the beginning. The middle four
sentences are jumbled up as P,Q,R and s. Sequence the sentences properly choosing the right option:
S1_ There was no limit to insanitation
S6- So I asked for a broom to clean them myself.
P-There were only a few latrines
Q- They refused point-blank to clean them
R-Pools of water were everywhere
S- I pointed it out to the volunteers
The proper sequence will be

Identify the one italicized expression (A, B, C or D) that must be
changed in order to correct the sentences:
Things $\frac{will be}{A}$ better if I $\frac{will get}{B}$ a job and $\frac{earn}{C}$ some money. Then I $\frac{wont have}{D}$
to live with my parents. (Ans: B)

The $\frac{company claimed}{A}$ to bring the best $\frac{products and services}{B}$ $\frac{onthe doorstep}{C}$ $\frac{ of their consumers}{D}$

Identify the errors in the sentences given below:
It is raining. Mohan and Sumesh were walking on the park. The path is
wet. Mohan slips and fell

Choose the most appropriate clause that can replace the adjective
phrase in the sentence:
‘Madhu met a girl with blue eyes’

In the sentence “The train came rushing down the hill”, the word
‘down’ functions as