That touching toads causes warts are still one of the most widely believed superstitions in America.
A: has
B: have been
C: had been
D: is
A: has
B: have been
C: had been
D: is
举一反三
- This is one of the best novels that ______ appeared this year. A: have been B: has C: had been D: have
- This is one of the best products that____sold this year. A: had been B: have C: have been D: has
- Tom is the only one of the students who ____ to Shanghai. A: has been B: have gone C: had gone D: have been
- Many a student in my class ______ America. A: have been to B: have gone to C: has been to D: has gone to
- The Vikings are believed ________America. A: to have discovered B: to discove C: in discovering D: to have been discovered