________ the course very difficult, she decided to move to a lower level.
A. Find B. Found
C. To find D. Finding
Though they met for the first time, they talked ________ they were good friends.
A. even if B. as if
C. even though D. if only
Once the new rules are made，what matters much next is how they will be________to all the members of the club.
A. devoted B. referred
C. applied D. directed
I felt very tired when I got home. and I _______ straight to bed.
A. go B. went
C. had gone D. have gone
Nowadays, many people walk to work ________ Copenhagen Conference calling for living a low-carbon lifestyle to cope with global warming.
A. in response to B. in relation to
C. in addition to D. in opposition to
Helen alway s helps her mother even though going to school _____ most of her day.
A. puts up B. makes up
C. saves up D. takes up
