Students can easily fall behind in theirstudies ____ they don’t manage their spare time carefully.

month later, he found his lost motorcycleinthe woods off the highway

The ground is slippery. Hold onto the ropeand don’t .

Why didn’t you come to Simon’s party last night?— I wanted to, but my mum simply ________ not let me out so late at night. [ ]

Sandy doesn’t like horror films.—________．