When the minerals needed for corn to grow are lack, the husks may be stunted.
=> are lacking/ have been lacking
We all agree that she is____________________ student in our class.
_______ has been a topic of continual geological research.
Stephanie: "Oh, no! I left my book at home. Can I share yours?" Scott: "______ "
Education in many countries is compulsory________the age of 16.
We must push the piano to the corner of the hall to_____________________ our party tonight.
I am sorry I have no time at present to____________________ detail of our plan.
Michael looked deeply hurt and surprised when_____________________ .
The examination was not very difficult, but it was_____________________ long.
Standing on the tip of the cape,____________________ .
______ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music.