The book ___ to the library on time.
A: must return
B: must return
C: must be returned
D: returned
A: must return
B: must return
C: must be returned
D: returned
举一反三
- The book must ______ to the library. A: return B: be returned C: to be returned D: to returned
- Mary told me that the story book must ______ to the library in two days. A: be return B: be returned C: been returned
- The books must （）to the library on time. A: be returned B: give back C: take
- The books (borrow)________ from the library must be returned before Friday.
- I have kept the book for 3 weeks．I _______ them to the library last week． A: ought return B: ought to return C: ought have returned D: ought to have returned