When you do math you are adding, rooting, graphing etc. When you are doing social studies you are studying people and population. It can also be about geography and how people live today. You are being social.
The internet is the next step.
<span>15. Mona Lisa smiled mysteriously. (Past)
16. The three of us have planned on a picnic. (Present perfect).
17. Both teams will play a good game. (Future)
18. I expect to had enjoyed the beach. Past perfect:
19. We will be packing sandwiches for lunch. Future progressive:
20. Ron will have forgotten to feed the cat. Future perfect:
21. Anne had been staying home during her boyfriend’s trips. Past perfect progressive:
22. The author will have been promoting her book. Future perfect progressive:
23. Cardinals have been nesting in the shrubs. Present perfect progressive:</span>
The correct answer to your question would be... B. Them
Reasoning:
Them, is the students. Even though the actual word students is not mentioned "Them" is referring to that group of people making "them" the indirect object.
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