Find a mistake in the four underline parts of each sentence:
1 if i am the predent, iwould remove all the factories out of the citi
2 scientists worry that the continued use of certain pollution may damage the earth"s ozone layer
3 in America,its not imkpolite to ask question about age ,marrige and income
4 Hoa said that she will be doing an experiment at 10 o clock the following day
Loga
Sinh Học lớp 12
