It was a small place then compared to _______ it is now.
A
whatitis是介词to的宾语从句，相当于一个名词。comparedtowhatitisnow：与它现在的样子相比。
______ of a sentence depends on the context in which the sentence is uttered.
If you are walking away from a clock tower ，you will hear the ticking of the clock fade to a point ________ it cannot be heard.
By "language acquisition is primarily the acquistion of the grammatical system of language", linguists mean that ______.