Collocations
Q1
You should always back ..... your computer because you never know when your system is going to crash. You could lose all of your stored information in a case like this.
(*) over
(*) off
(*) up
(*) on
You should always back ..... your computer because you never know when your system is going to crash. You could lose all of your stored information in a case like this.
(*) over
(*) off
(*) up
(*) on
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