Computers first came into use ________.A. in 1950s B. on the 1950s C. in the 1950s
— How can I _________ the bank, please?— You can take bus No. 10.
We had a lot of fun __________ English songs(歌曲).
Our teacher often tells us __________ homework carefully(认真地).
—Oh, hi, Jane! __________?—Not bad.
Mr. Green has two daughters. _______ is Kate, and _______ is Kathy.