--When _____ the abacus _____? -- In the sixth century by the Chinese people.
—____ nice the ice cream looks! I can’t wait to taste it.—I think so.
—How do you like your new school, Kate?—It’s great. It is very clean and beautiful, ________ it is a little bit small.
—When and where to spend the holiday ____ yet.—Let’s make it now.
—Why are you walking so quickly, Edward?—There_____ a talent show in ten minutes.
— The woman_________ we met yesterday is our new Chinese teacher.— Really? She looks young and energetic