Will you go camping with us, Bob?
I'd love to, but I ______ study for the test.( )
A. |
may |
B. |
must |
C. |
can |
D. |
could |
Will you go camping with us, Bob?
I'd love to, but I ______ study for the test.( )
A. |
may |
B. |
must |
C. |
can |
D. |
could |