________ you don't take notes you will have a hard ...

★ If/Unless - Conditional type 1

________ you don’t take notes you will have a hard time studying later.

A. unless

B. if

C. both

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Fill in the blank with the correct form of the verb.
The boat service (i) __________ (stop) if the weather (ii) ___________ (be) bad. (Type 0)

A. (i) may stop ; (ii) is

B. (i) stops ; (ii) is

C. (i) stop ; (ii) will be