There were two small rooms in the house, ____ smaller of which served as ____ kitchen.

Mike is        American boy .He studies in       university in Lanzhou.

“I”    the first letter in the word“industry”, there is also_____“u”and    “s”in it.

—What did ________ old man in red buy in your shop?—He bought ________ umbrella.

–It’s       hard work to achieve a balance between schoolwork and hobbies.–So it is, but we have to.