A surface that doesn't have a slope would be what? - flat ground - downhill - straight - slanted - slopewash  The best answer is
straight

Babies don't make the same noise adults make when applauding, but they still do what when excited? - sleep soundly - trust parents - clap hands - jump around - like spinach  The best answer is
clap hands

She was taken aback by his real personality, what were other past boyfriends like to her? - a figment of her imagination - fictitious - artificial - fiction - imaginary  The best answer is
artificial