—Do you like junk food ?—Yes, I love hamburgers very much.  I often eat           .

— _______ does Tom like math? —Because _____ fun.

 Ted's mother kept telling Ted not to tell lies, but_______ didn't help.

I find _______ necessary to take some warm and dry clothes with us during the walk.

I don’t think         possible for us to learn a foreign language well without hard work.