—Sorry,but I didn't quite catch what you said.Would you please ______ your email address? —OK.It's andy 19840313@126.com.
It’s common ______ that the Japanese eat Sushi.
The main unit _________ all the computer’s electronics.
You _______ ever saw computers years ago, but now they are everywhere.
—! I left my wallet in the desk and now it’s still here. —Lucky you! You should take good care of your things.
—Look! Lily and Sally are cleaning the school laboratory. —Let’s go and join them. .