----Has the National Indoor Stadium been completed?----- Not yet .It’s still _________ construction.
So sudden ______ that the enemy had no time to escape.
Look out!Don’t get too close to the house ________ roof is under repair.
I have an appointment _______ Dr.Brown,but I need to change it.
— I’m sorry.I ________ at you the other day. — Forget it.I was a bit out of control myself.
_____ with so much trouble,we failed to complete the task on time.