—_____ the population of the U.S.A. in 2005?—It _____ about 296 million.A. What is; is B. What was; was C.How many was; was
The old man lives________, but he doesn't feel________.
— Mum, have you seen my mobile phone? —_________you bought last week? I’m sorry I haven’t seen _________.
They have ________for about ten years.
They all thought________ necessary________ you to buy some bread and soft drinks.
This work is _________difficult for us. We need _________people.