Learning to care for a pet helps a child grow into an adult who feels responsible for ______dependent on him.
.I just wonder _____ that makes him so excited.
Thanks to your help, ________ I would not have completed the task on time.
The conflict had developed into a stage ______ the two countries were gathering big troops on the border.
The schools themselves admit that not all children will be successful in the jobs ______ they are being trained.
______ scientists know where a storm will happen, winds will suddenly change, carrying the storm to a new direction.