Answer:
Researchers used HeLa to develop “methods for freezing cells” (p. 98), and since they could freeze cells they could look at “identical cells at different points in time” (p. ... 98) and by freezing cells, researchers could see when this happened
Explanation:
Answer:
A. change activity.
Explanation:
Restiveness is the anxious feeling that a person has, an ill foreboding feeling of something to happen. It is the feeling or act of being impatient.
In a listening situation, if a speaker sees that his listeners are becoming restive, then he should try to change the activity he's doing. This will ensure that the listeners are not bored and impatient and it will divert the attention of the listeners. It will also provide relief or change in the interest of the listeners.
Thus, the correct answer is option A.
around spring im guessing since it was may/ april
The verb here is "had given"; this is past perfect: it's a perfect tense, because it has a past participle with the -ed ending ("given") and it's the past perfect because the auxiliary verb is the past form of "have": had.