Yao Ming as well as his teammates ________ hard to win honor for China these years.
| A．work | B．are working | C．has been working | D．works |
_____ carelessly, the boy made mistakes here and there. .
| A．being written | B．Wrote | C．Write | D．Writing |
The problem requires ______.
| A．studying with great care | B．to study carefully |
| C．to be studied without carelessness | D．taking great care of studying it |
_____, she burst into tears.
| A．Deeply moved | B．Deeply moving |
| C．As she deeply moved | D．As she was deeply moving |
I couldn't help _____ when I heard the joke.
| A．being laughed | B．laughing | C．to be laughing | D．to laugh |
She was noticed ______ the shop.
| A．to enter | B．enter | C．having entered | D．entered |