- Where have you been all day?- We ________ some lovely children and it was dark by the time we got away.
________by a group of children,the old man was delighted.
Learning English means _________ memorizing a huge lot of words.It involves a large amount of reading as well.
Tom as well as two of his classmates _____ invited to the party.
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
My grandfather is always thinking for others. In another word, he is always ________.