The thief took away the woman ’s wallet without ________.

I was writing a report last night; ________ I would not have stayed up late.

Linguists can concentrate on all the aspects of language at once.

The basic unit in the study of morphology is ______.

The other timing system belongs in our internal clocks，which，left ________，would tie the body to a 25-hour rhythm.

In classifying the English consonants and vowels, the same criteria can be applied.

Empirical studies show that the process of SLA is a process of constructing and modifying rules of communication.

If payment is not received, legal action will be our only ________.

I asked him to ________ me a few minutes so that we could go over all the problems.

These two alarm clocks are normally set together, but now they have been reset a few hours _________.