Is it absolutely wrong to say the following (instead of the bracket ones). Or they are acceptable in some way, pls help.

a) I got a bad news this morning ( some ).

b) Please get me some chalk (some pieces of ).

c) Her two boys are still schooling ( at school ).

d) They stress on the importance of english language ( stress).

e) He emphasized on the cost of the trip ( emphasized ).

f) He was warded straightaway to hospital (admitted).

g) I like to study in the night.

( Some people like to study in the morning. Why must at night )

h) I am tired at walking (of ).

i) My friend is very good in Maths ( at).

j) They listed out their problems (listed).

k) I voiced out my opinion (voiced).

l) He �s a small-sized man (small).

m) I followed my father to U.S (went with/accompanied)

n) He told a funny joke ( a joke)