Dear all,
1. Do you know if Mark passed the test yesterday?
2. Do you know if Mark could pass the test yesterday?
Between the two sentences above, which one is fine?
Thank you!
OP
#1 is fine; #2 is wrong.
Context is always important; labelling is rarely important.
(Unless Mark has suddenly lost some capacity - pretty unlikely
.)
b
... or just 'Did he pass?' - if he did pass he was obviously able to.
b