__________ you eat the correct foods ___________ be able to keep fit and stay healthy.
| A．Only if; will you | B．Only if; you will |
| C．Unless; will you | D．Unless; you will |
After having failed many times, the young man refused to try it _______.
| A．again and again | B．once more | C．less | D．over and over again |
At first nothing happened _______ suddenly a large rat rushed out of the house,…
| A．Then | B．And | C．Or | D．So |
Why did you ask him for help instead of Jim? He is _______ helpful than Jim.
| A．no more | B．any more | C．not more | D．some more |
A transistor radio is sometimes very small. It is very easy to carry…_______, radio broadcasts are better for blind people.
| A．Besides | B．However | C．Yet | D．Sometimes |
Don't worry about him. He is _____ a child and he is able to look after himself.
| A．no longer | B．any longer | C．no more | D．any more |