Have you visited the Great Wall?
| A．ever | B．before | C．did | D．done |
—Have you found your bike?—.
| A．No,you have | B．Not yet | C．Yes,I do | D．Yes,I found |
—Where’s your friend?
—She Shanghai.She won’t be back next week.
| A．has been to;after | B．has been to;until |
| C．has gone to;until | D．has gone to;after |
—have you visited the Summer Palace?—Nerver.
| A．When | B．What time |
| C．How long | D．How many times |
—Who has been to the USA?—.
| A．None | B．Nobody | C．All of | D．None of |