The suffixes -ed, -er, and -ing can be added to the end of the word shop. For which of the following do you need to double the final consonant before adding the suffix?

shop + -ing

all of the above

shop + -er

shop + -ed

What is the main problem with the following critique? “you put some thought into it, but you obviously do not care much about the topic you are presenting.” a. it is not ethical. b. it is not constructive c. it is not specific. d. it is not behavior focused.