--Why do you get up so early in the morning?---I make it a ______ to get up before 7am to read English.
---- A number of voiunteers _____ willing to teach in China’s rural areas. ----- Yes. The number _____ getting bigger and bigger.
It’s sometimes hard to tell one twin from _____.
--Where is your father? ---- He _____ Australia and he _____ Sydney for two weeks.
----Have you ever been to Shanghai? ----Yes. I _____ there with my father last year.
---- Do you know the _____ of the stone? ---- Yes. It _____ about 200 kilos.