—Alice, you look puzzled. Have you understood it?
—Yes, I another problem just now.
| A．have thought of | B．am thinking of |
| C．had thought of | D．was thinking of |
I thought it was __________ to donate money to this fund.
| A．worth | B．worthy | C．worthwhile | D．worthless |
The famous singer and actress ___________ performing in our city this week.
| A．am | B．is | C．are | D．be |
Practice Chinese Kungfu can not only _________ one’s strength, but also develop one’s character.
| A．bring up | B．take up | C．pull up | D．build up |
If you are too formal, people around you won’t be __________.
| A．at ease | B．in danger | C．in common | D．at work |
Mr. White together with his three colleagues __________ at the meeting last week.
| A．was | B．were | C．are | D．is |