—Who______ it be that is knocking at the door? —It ______ be Father, but I’m not sure.
——Do___________ you have the Harry Potter books by J. K. Rowling in your shop? —Sorry, there is left at the moment.
He made it clear that only the point that new technologies hold the key to increasing productivity the economy in the long run.
Japan's refusal to release Chinese fishing boat captain had caused serious damage toSino-Japanese bilateral contacts (双边交往).
To our surprise, not a single word _______ in the discussion last Thursday.
——Why are you late for the meeting?—— I got caught in the heavy rain, or I _______ earlier.