Choose the word that most appropriately completes each sentence

Ex1. Choose the word that most appropriately completes each sentence.
1. Nathan had to ______ an experiment for his Science project.
a. carry out b. come up c. put up with d. grow up
2. The application form asked for a lot of ______ details.
a. flexible b. inefficient c. unimportant d. endless
3. I prefer buying my books online because it’s more ______.
a. convenient b. advanced c. inevitable d. remarkable
4. The book gave a(n) ______ insight into life in Chile in the 1920s.
a. affordable b. impossible c. effective d. fascinating