26. --- We can use WeiChat to chat with each other.
--Really? Will you please show me __________ it.
A. what to use B. how to use C. when to use D. where to use
27. --- How many students are there in each group?
--- Usually each group _______ six students in our class.
A. is made from B. is made up of C. is made in D. is made of
28. Mrs. Black isn’t used to _______ by sea and she used to ______sick a lot.
A. traveling; feel B. travel; feeling C. travel; feel D. traveling; feeling
