Ann is so careful that she always goes over her exercises to _______ there are no mistakes.
Every day _____a proverb aloud several times until you have it memorized.
In April, thousands of holidaymakers remained ______ abroad due to the volcanic ash cloud.
— I’m afraid I can’t finish the magazine within the required time.— _________.
--Come on, please give me some ideas about the project.--With so much work filling my mind, I almost ______.
Only when I woke up______ what had happened.