After Wang Ping’s mother flashed a switch, a table and chairs rose from under the floor ______ by magic.

　 A. as if　 B. as though　 C. as well as　 D. as long as

Then Wang Ping flashed a switch on a computer screen，and a table and some chairs rose from under the floor       by magic.

Then Wang Ping flashed a switch on a computer screen，and a table and some chairs rose from under the floor       by magic.

Then Wang Ping flashed a switch on a computer screen，and a table and some chairs rose from under the floor       by magic.

1. A.
   only if
2. B.
   even if
3. C.
   as if
4. D.
   what if