There are so many beautiful clothes in the store. I really don’t know _____.
| A．what to choose | B．how to choose |
| C．when to choose | D．which to choose |
--- Will you please answer the door? It _______ be your sister.
---Sorry, I ________. I'm feeding the rabbit.
| A．must；mustn’t | B．will；can’t |
| C．may；can’t | D．must；needn’t |
－Jim, is physics difficult to learn in high school?
－Sure. No subject can be learned well hard work.
| A．without | B．from |
| C．through | D．for |
---The picture book doesn’t seem so popular. What about the dictionary?
---Oh, the dictionary _______ well.
| A．sells | B．sold |
| C．is sold | D．was sold |
－Our school is going to hold the Culture Festival.
－Yes! And we can take part in activities.
| A．Fifth; fifth | B．Five; fifth |
| C．Fifth; five | D．Five; five |
—Look! Here comes Cindy! She is always full of .
—So she is. because she takes a lot of exercise every day.
| A．knowledge | B．courage |
| C．change | D．energy |