—How many teachers are there in your school?—About four ________.A.hundreds ofB.hundredC.hundreds
--Which do you ___________, trousers or a skirt? --I _____ wear trousers. I don’t like skirts
--What’s the advantage of shopping online? --I think buyers _______spend a lot of time going to shops.
--What do you think of the 3-D printer? --It’s great although it still needs further ______.
_______valuable information you’ve offered us! Thanks so much!
This is ______ unusual course that is taught in ______ university, but it’s of no use to the real life.