--- Who’s singing in the bathroom?
--- It ________ be Mr. Brown. Nobody sings like that except him.
| A．will | B．must |
| C．could | D．should |
There is a river ____ my house.
| A．in the front | B．in front |
| C．in the front of | D．in front of |
— What were you doing yesterday afternoon?
— We were singing ____.
| A．all the time | B．always |
| C．on time | D．in time |
Bill doesn’t do well in his English. So his father asked a teacher ____ him ____ it.
| A．to help; on | B．to help; with |
| C．help; with | D．help; on |
— ____ do you think of the story?
— Just so-so.
| A．What | B．How | C．Which | D．Why |
— ____ is it for the dance lesson?
— It’s 100 yuan.
| A．How much | B．How many |
| C．How often | D．How far |