These two alarm clocks are normally set together, but now they have been reset a few hours _________.
A、awayC
but表示前后句子意思是相反的，所以前面说了settogether，后面提到的就是apart(分开)。
If payment is not received, legal action will be our only ________.
Ifpaymentisnotreceived,legalactionwillbeouronly________.
Alinguistictheoryisconstructedaboutwhat______isandhowitworks.
The old couple have been married for 40 years and never once _______ with each other.
I was writing a report last night; ________ I would not have stayed up late.
