I still remember there used to be _______ underground cave. My friends and I often had fun in _______ 18-foot-deep cave.
That boy is my good friend. _________ name is Mike.
—Where did you go last night? —Ito go to Li Lei’s birthday party.
—Have a nice time in the summer holiday! —.
—will the foreign students be back from Qufu? —In two days.
She loves the library she loves books.