— I hear Li Yuan wants to be a cosmonette(女宇航员) like Liu Yang. It’s difficult for her.—But I think she can ______ her goal after work hard.
—Would you like to join us in the game ? — , but I have to help my mum.
— Would you like something to drink? —I’m not thirsty.
—Have you mended your shoes, Bob? —Yes, I _________ them twenty minutes ago .
—Listen! Is Mary singing in the next room? —No. It _______ be Mary.She has gone to Shanghai for an important meeting.
.Hurry up, ________ you’ll not catch the first bus.