So popular _______ that the young
| So popular _______ that the young generation are dying for it. |
| [ ] |
| A. has iPhone 4 become B. iPhone 4 has become C. had iPhone 4 become D. iPhone 4 had become |
可能相似的问题
| So popular _______ that the young generation are dying for it. |
| [ ] |
| A. has iPhone 4 become B. iPhone 4 has become C. had iPhone 4 become D. iPhone 4 had become |