The completion of sentences about future ability or possibility requires the use of appropriate modal verbs or phrases to express certainty or uncertainty. The provided answers use 'will be able to' for definite future capabilities and 'might be able to' or 'might not remember' to indicate future possibilities.
To complete the sentences about ability or possibility in the future, we need to use modal verbs or phrases that are suitable for expressing future capabilities or possibilities. Here are the completed sentences:
They can't fix the TV today, but they will be able to fix it tomorrow. (definite)
It's too dark to read the map now, but we will be able to read it in the morning. (definite)
I can't speak Polish now, but I might be able to in the future. (possible)
Stefan can take care of me now, but he might not be able to take care of me when I'm 90. (possible)
We can't help you now, but we will later. (definite)
I can remember the dates now, but I might not remember them in the test. (possible)
It is important to choose the correct modal verb or phrase to indicate the right meaning, whether it's a definite and certain ability or a possibility that may or may not come to pass.