The director wants to make sure no one will solve the mystery until it ________ at the end of the horror film.
| A．is explained | B．will be explained | C．explains | D．has explained |
-How well she sings!
-Yes, she has a very sweet __________.
| A．voice | B．Sound |
| C．Noise | D．shout |
He found very difficultthe math problem.
| A．that；to solve | B．this；solving |
| C．it；to solve | D．it；solving |
My sister has learnt English _________.
| A．for twelve years ago | B．since she was four |
| C．twelve years ago | D．at the age of four |
—Did Tom’s parents go to the meeting yesterday?
—Yes,of them did, butspoke.
| A．each, none | B．both, none |
| C．neither, both | D．both, neither |
Kate doesn’t want to buy the skirt because ____the color ______ the size fits her.
| A．neither; nor | B．either; or |
| C．both ; and | D．not only ; but also |