---What's the difference between the first house and the second ? ---The first house has a garage while the second has _____.

What’s the matter with you? There’s        in your project!

 Because it was snowing hard, buses could _________ get through, _____did taxi appear on the street.

The two girls are so alike that strangers find ____ difficult to tell one from the other.

I haven’t read ____ of the articles carefully, but I find that there is a striking similarity between them.