I enjoy hiking. My sister _____ too.
Tense, modality, and agreement
Fill in ellipsis or substitution: a) A: I’ll call you at 8. B: I’ll __ too. (Answer: call you at 8 / do) b) She enjoyed the concert; I __ as well. (Answer: did) c) Someone left the window open, but I don’t know __. (Answer: who __ / who left it open) ellipsis and substitution grammar exercises pdf