Question

but youre awesome at science, ernesto said. tami gave him a sad smile and explained. in our meetings, we have to use lots of different tools, but i cant remember which robot part needs which tool. who knew there were so many parts? you know, ernesto said, i could help you remember. he could endure some science if it meant spending more time with tami. you know, ernesto said, i could help you remember . blank, that you have lots of meetings; to spend more time with me; which tools you need to use; how to be awesome at science

Explanation:

Tami's problem is that she can't remember which robot part needs which tool. Ernesto offers to help her remember, so the correct continuation should relate to that. The option "which tools you need to use" directly addresses her difficulty in recalling tool - part associations. The other options don't match the context: "that you have lots of meetings" is about meetings, not the tool - part issue; "to spend more time with me" is about Ernesto's motive, not the help for Tami's memory problem; "how to be awesome at science" is not related to remembering tool - part pairings.

Answer:

which tools you need to use