You may borrow the book ______ you keep it clean.
A: when
B: unless
C: as long as
D: after
A: when
B: unless
C: as long as
D: after
举一反三
- You may borrow the book （） you keep it clean. A: such as B: so as to C: so long as D: as for
- You may borrow the book ______ you keep it clean.
- You may borrow my book___________ you promise to keep it clean. A: so long as B: when C: because
- You can borrow the book ______ you keep it clean. A: in case B: as long as C: considering that D: except that
- You may borrow this dictionary ______ you keep it clean. A: as long as B: so far as C: in case D: even if