We will spend our summer holiday in Guilin, but we haven't decided______________.
A. what to buy B. where to go
C. how to go D. which to choose
— When _________ you________ your teeth, Billy?
—Just now.
A. do; brush B. have; brushed
C. did; brush D. was: brushing
When I was walking in the street, I saw a plane___________ over my head.
A. flies B. flying C. flew D. m fly
We ___________ when the teacher came in.
A. were talking B. talked
C. talk D. are talking
I will let you know about it as soon as I _________ the news.
A. will get B. am getting C. got D. get
Beijing has ________ many buses that there is often a traffic jam in rush hours.
A. so B. very C. too D. much
