In all his life, Dickens wrote a large number of excellent novels in the 19th century, _____ some are still popular nowadays.
28.—Thank you very much. —Not at all , I was____________ glad to help.
27.I would have come to see you earlier, but I __________ too busy.
26.With summer coming on, the weather gets hot _________.
25.In Switzerland, six miles west of Geneva,___________ a collection of laboratory buildings.
24.America was____________ was first called" India" by Columbus