- Someone is knocking at the door. Is it Ann?
- It_______ be her. She is giving a performance at the theatre now.
| A．may | B．must |
| C．can't | D．mustn't |
---- Baseball is a popular game among students in Taipei
---- Really? But it is unpopular in our city. Students ___ play it.
| A．often | B．seldom | C．usually | D．always |
The top of the mountain ___ with snow.
| A．covers | B．covered |
| C．is covered | D．is covering |
--- Excuse me， could you tell me ___?
---- Sure. There is a post office at the first crossing.
A. where is a post office
B. where I can buy some stamp
B. is there a post office near here
D. how far is a post office
Look! This house is made ___ stone.
| A．by | B．from | C．of | D．into |
There are ___ floors in the building and my home is on the ___ floor.
| A．twenty； fifteenth | B．twenty； fifteen |
| C．twentieth； fifteen | D．twentieth； fifteenth |