These diagrams are especially helpful when we have a concrete problem ________ at hand.
You had better______ some money for special use.
Tom possesses a remarkable talent_____ music; that is, he is a musician _____great talent.
We desire that immediate help_____ to the local villagers who have been trapped by the flood.
______, the party which the old professor attended last Saturday was pleasant.
Your performance in the driving test didn’t reach the required standard--_____, you failed.