Answer:
1. They have to be careful about what they do.
2. They can proceed with their experiments.
3. This should make education during the pandemic easier.
4. This will help local farmers grow their plants during the winter.
5. It may make it even easier to grow plants.
Step-by-step explanation:
The task here is to write sentences that are connected to the previous ones using modal verbs. Modal verbs are used to indicate likelihood, ability, permission, request, capacity, suggestions, order, obligation, or advice. They are always followed by another verb that completes its meaning (have to + be, can + proceed, etc). Modal verbs are the following: can, could, must, may, have to, might, ought to, shall, should, will, and would.