Question

快要下雨了，所以你必须带雨伞。翻译，It　is　going　to　rain，so　you　——　——

——　an　umbrella．

Answer 1

It　is　going　to　rain，so　you　had better take an　umbrella．

Answer 2

its going to rain,so you have to take un umbrella .

Answer 3

It is going to rain, so you have to take an umbrella

Answer 4

have to take

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Answer 5

是三个空吗？如果是，就填must take along。