—Linda,the phone in your office can't be connected all the time.Why?—Oh,sorry,Miss Miles.The service________since last Wednesday.
—She looks very happy. She________have passed the exam. —I guess so. It's not difficult after all.
Don't be so anxious about that. Helen________a note.
—Mum, I climbed to get the Teddy Bear from the top of the shelf. —My goodness! You________yourself. You________do that next time.
Sorry, I'm late. I________have turned off the alarm clock and gone back to sleep again.
I posted a book to her three weeks ago. She________have received it.