Choose the best answer A, B, C or D for each sentence: My brother says that if the three parties cannot reach ... now, there will be a civil war

Choose the best answer A, B, C or D for each sentence:​
1. My brother says that if the three parties cannot reach______ now, there will be a civil war.
A. agree              B. agreement              C. agreeable              D. agreeably
2. It seems______ that you could have walked by without noticing that nice girl.
A.possible           B. impossible              C. possibly                D. impossibly
3. We know that plant_____ is most noticeable in spring and early summer.
A. grow                B. grown                    C. growing                  D. growth
4. Don't you know that this theory is no longer______ accepted.
A. wide                B. widen                    C. widely                    D. width
5. It was reported that the_____ of the strike caused a lot of poverty.
A. continue          B, continuous             C. continuation           D. continual