Based on the text 19A1BBB, judge the following items.
The word Instead (l.14) can be correctly replaced by Moreover.
Judge the following items according to text 19A3AAA.
The sentence However, there are other causes for errors too, one of which is overgeneralization of target-language rules would remain correct if which were replaced with them in the clause one of which is overgeneralization.
Judge the following items according to text 19A3BBB.
It is correct to replace calling with call in the phrase used to calling (l.17).
Judge the following items according to text 19A3BBB.
In the first paragraph, As is a conjunction used to convey time.
Judge the following items according to text 19A3BBB.
In the first paragraph, both innovative (l.1) and characteristics (l.5) are pronounced with the primary stress on the first syllable.
Choose the alternative that best completes the blanks in the text, following 1 to 4 order. 
If we add the prefix -UN to some words in English, we can get the opposite of that word, like in unwanted (l. 29). In this sense, consider the following words and analyze them:
I. able.
II. happy.
III. fair.
IV. acceptable.
Which of them can be an opposite just by adding the prefix -UN?
Choose the alternative that presents a synonym to the underlined word in the context below:
But with practice you can learn to disrupt and tame negative cycles. (l. 13).
The sentence But constant negativity can also get in the way of happiness, add to our stress and worry level and ultimately damage our health.' (l. 02-04) could be paraphrased only by the following: 
The word help (l. 17) may be both a noun and a verb without having to change its spelling. The same may occur to all the words bellow, EXCEPT for: 