( ) This machine is very easy to use.______ can learn to use it in a very short time.
() old are you ? ---- I am eleven years old. A. How B. What C. Where
()I’m in London . A. yesterday B. now C. tomorrow
()Your hair very short. A. was B. were C. are
()I in Hong Kong. A. were B. was C. do
()Mum and Amy weren’t Beijing. A. of B. at C. in