"Cheating" isn't the only thing we're concerned about here. We also believe that the students can learn more by making an attempt an then letting us correct and explain their mistakes. HINT: to make a tag question, start with the tense of the main verb of the statement.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Anonymous1.There haven't ...The only one that might give you trouble is the second one. Just use "There didn't use to be" as the negation of "There used to be", and you should be able to work it out.