In communication, a smile is usually strong sign of a friendly and open attitude.
| A．the; / | B．a; an | C．a; / | D．the; an |
_____ of her skirt is different _____ that of mine.
| A．A color; in | B．The color; with | C．A color; between | D．The color; from |
After he had said good-bye to Jack, Tom ______ a bus and left the town.
| A．got down | B．got on | C．got into | D．got off |
When I entered the classroom, I saw the students _____ in their seats.
| A．sitting | B．are sitting | C．sat | D．to sit |
I would really _____ it if you could offer me the chance to study abroad.
| A．thank | B．make | C．like | D．appreciate |
I wonder how he _______ that to the teacher.
| A．dare to say | B．dare saying | C．not dare say | D．dared say |