Don’t disturb me. I ______ letters all the morning and have written ten so far.
The plastic flowers look so ______ that many people think they are real.
______ you understand it, it’s easy for you to obey it.
Don't trust such people ______ praise you to your face but speak ill of you behind your back.
. Good news! We didn’t spend ______ we had expected.
---May I look at the menu for a little while?---Of course, ______ sir.