Randy has chosen the following sentences to illustrate today’s grammar lesson: It rains here every day. It rained yesterday. It is raining today. My cat watches the rain. It watched the rain yesterday. It is watching the rain today. My sister plays in the rain. She played in the rain yesterday. She is playing in the rain today. My friends run in the rain. They ran in the rain yesterday. They are running in the rain today. Question 67 Flag for review What additional vocabulary would best complement a lesson focusing on the simple present tense? a. Participles (running, talked, swimming, etc) b. Time phrases beginning with "for" or "since" c. Prepositions of time and place (at, on, in, etc) d. Adverbs of frequency (sometimes, always, never, etc)