Which of the following signs can you often see next to a lake?
—Have you finished writing the letter ________?
—Not ________.
A. just； already B. already； just
C. ever； just D. yet； yet
American First Lady Michelle Obama arrived ___ China ___the afternoon of March 20，2014.
A. on， on B. in， on C. in， in D. at， in
--- What do you think of my answer to the questions?
--- Sorry. I ________ about something else.
A. thought B. had thought
C. am thinking D. was thinking
People in Yangzhou __________ walk or ride bikes， but now they____________taking the bus or driving cars .
A. used to； used to
B. were used to ；used to
C. were used to； are used to
D. used to； are used to
The fans were so excited that they _______ their hands .
A. could’t stop clapping B. couldn’t stop to clap
C. can’t stop clapping D. can’t stop to clap
