If I .................... you, I'd stop eating so many sweets. It'll rot your teeth.

The lifeguard told the children………into the water because the waves were too high.

If he… ............. harder, he would have passed his examinations.

Which country is bigger, China or the USA? Who................ the answer?

Muhammad: Are they your children? Ahmad: No, they aren’t. they’re………

In which sentence is all PUNCTUATION correct?