Answer:
It looks like this is a language exercise question where you are asked to write the correct simple present tense form of the verb. Here are the correct forms:
Everyone in this class is wearing jeans. (be)
Many students study for five or six years. (study)
Factories suffer economically these years. (suffer)
Somebody has to do something about it. (have to)
Either you or I am responsible. (be)
Everyone loves chocolate. (love)
Neither the man nor the woman is coming to the party. (be)
Today I am making a speech. (be)
Either my dad or mom is cooking dinner tonight. (be)
Peter studies in his room. (study)
The teacher decides the homework. (decide)
Neither the student nor the parent is happy about the result. (be)
Neither the teacher nor the students prefer to wear sandals in early spring. (prefer)
Someone has the right to a good life. (have)
Everybody loves pizza. (love)
Neither cats nor dogs are allowed at the exhibition. (be)
The iPhone is a great invention. (be)
We need to do it. (need)
They enjoy taking time off. (enjoy)
My grandparents are older than 60. (be)
My sister will take us to the game. (take)
She rides her bike to school every day. (ride)
The sun rises in the east. (be)
It is a good idea. (be)
Step-by-step explanation: