—How about joining us in the summer camp? —I wish I could, ___________ I have to practice for the piano test. 
#56543
A
because
B
so
C
but
D
although
推荐题目
It _______ them two weeks _______ the computer last year.
#58490
A
takes; to work on
B
spends; working on
C
took; to work on
D
spent; working on
—________ is this blue shirt?—It’s seven dollars.
#55942
A
How many
B
How much
C
How old
D
How tall