(届四川射洪县射洪中学高三高考模拟英语题)Relax yourself every day,________ you'll be too tired to get good grades.
—I left my handbag on the train, but luckily someone gave it to a railway official. —How unbelievable to get it back! I mean, someone ________it.
They ________have arrived at lunchtime but their flight was delayed.
—Happy birthday! —Thank you! It's the best present I________ for.
We ________ have bought so much food now that Suzie won't be with us for dinner.
—Why are your eyes so red? You ________ have slept well last night. —Yeah, I stayed up late writing a report.