-Do you know ________ I could pass the exam?
-Sorry, I've no idea.
[ ]
A.that
B.whether
C.what
D.which
These books should ________ to the library on time.
[ ]
A.send
B.be returned
C.give back
D.be got back
-Do you know ________ I could pass the exam?
-Sorry, I've no idea.
[ ]
These books should ________ to the library on time.
[ ]