The boy ______ lost his backpack has to borrow books from his teachers. |
A. who B. whose C. which D. whom |
There are many flowers on the hill. I _____ some just now. |
A. gather B. gathered C. will gather D. am gathering |
My parents and I moved to the United States __________. |
A. tomorrow B. every month C. five years ago D. in thirty minutes |