– Look at the lady there. ______ it be Miss Li? -- No, it ______ be her. She left for Paris this morning.
My phone is broken.It________just now.
—Sorry,Mr Green.I________my English book at home.—That’s OK,but don’t________next time.
Miltie________a picture when Mr.Green came in.
—Always look around________you cross the street,David.—OK.I know,Mum.A.untilB.beforeC.unless
The thieves ran away at once when the burglar alarm(防盗报警器)________.