[ Grammar ]
Visitors to the zoo _____ feed the animals.
A. have to
B. don’t have to
C. must
D. mustn’t

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Conjunctions and Sequence Connectors › View____ the weather was bad, we went for a hike.
A. Because
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Grammar › View
The last time I saw her was in 2015. It is 2019 now.
A. I haven’t seen her for 2 years.
B. I haven’t seen her since 2015.
C. I last saw her in 2019.
D. I have seen her since 2015.