----- What’s the model plane look like? ----- Well, the wings of the plane are ______ of its body.
________ when the door burst ______.
In order to improve English, _______.
-----It is long since we met last. Haven’t you graduated from college yet? ----- _____. I ____ English for 3 years in Lanzhou University.
Would it be ___ for you to help me take my luggage upstairs?
When we plan our vacation, Mother often offers ___ suggestions.