He’s working hard for fear that he__________.
When you go outing with your sisters, you must see to ________ that they are safe.
A model or an experiment in a science class can help students see things which would ______ remain hidden.
Written in a hurry, ________. How can it be satisfactory?
Is ________48 hours________ the man- made satellite ________ is made in our country to orbit the planet around?
Use your head! Nothing taught by others can have the same effect on you as ________learned by yourself.