Question

【题目】Last night I had a cup of coffee in Starbucks, and then I found it hard to fall _________. (sleep)

Answer 1

【答案】asleep

【解析】

句意：昨晚我在星巴克喝了一杯咖啡，然后我发现很难入睡。

fall asleep入睡，固定短语，故答案为asleep。