ook didn’t come back at the usual time lastnight. ______, he met some friends and stayed out until midnight.

They always end up in English.

Helen is my friend. She is in ______ at Beijing No.11MiddleSchool.

(2013·安徽重点中学一模)Not only ________ to turn off the lights in the kitchen, but we also failed to lock the front door.

________ a clear attitude ________ the island argument is probably the most important thing we’ll do.