—Do you know________?—Sorry,I don’t know.A.if she will come to the concert or notB.whether she will come to the concert or notC.if will she come to the concert
He told us that he________the letters in the morning.
By nine o’clock yesterday evening,we________our work.
We________four thousand new words by the end of last year.
—Did you meet Tom at the airport? —No.His plane________by the time I________there.
I will not leave you alone.________I go,I will take you along.