It’s much _________ to have a small lovely room than a big cold one.
---Why don’t you listen to tapes to improve your listening skills? ---It’s _______ difficult for me ______ follow.
---I’m going to take my driving test this weekend. ---________.
You will fall behind others ____________ you work hard.
H7N9 bird flu is a virus can make people die. We’d better stay away from birds at present.
--- Could you tell me __________? --- Certainly. In half an hour.