Look. How clean the window is! It ________ just now.A. was cleaned B. is cleaned . has been cleaned D. will be cleaned
I think there will be _____ people and ______pollution.
-- Must I do my homework right away? -- No, you _____. You_____ do it later.
They arrived early at the airport, __________they had time to go shopping.
My father offered __________me to the zoo last weekend.
Li Hua’s shoes are as as Zhang Hui’s.