11.4.5 Match the words in bold to their meanings:• a sensor make better produceconditions that affect brain function• a means to exchange digital information• a message sent along a nerve cella cell capable of becoming many different celltypes a device or software related to the brain• use .active encourage increased activity​

1 haven't cleaned
2 haven't started
3 haven't done
4 hasn't won
5 haven't seen
6 haven't invited
7 hasn't washed
8 haven't tidied
9 haven't finished
10 haven't visited
11 haven't seen
12 hasn't taken
13 hasn't played

Схема построения отрицательного предложения:
Вс глагол ( have /has) + отрицательная частица not + основной глагол в третьей форме для неправильных глаголов или окончание -ed для правильных . Has используется с местоимениями she, he, it have со всеми остальными. Пример : He HAS NOT WON all his matches this year.