选择合适的单词填空。
(1)Some boys are ___ a boat.
(2)They’re ___ chess.
(3)Look ___ the tiger.
(4)Grandma is ___ a book.
(5)___ she doing?
选择合适的单词填空。
(1)Some boys are ___ a boat.
(2)They’re ___ chess.
(3)Look ___ the tiger.
(4)Grandma is ___ a book.
(5)___ she doing?