Jane had just finished her homework ________ her mom asked her to practice playing the violin yesterday.
| A．when | B．while | C．after | D．before |
that the country leaders can lead them out of the financial problems, people are becoming more optimistic about the future of the country.
| A．Convincing | B．Having convinced |
| C．To convince | D．Convinced |
—You’re late again. Wefor you since 8: 00 a. m. .
—Sorry. An unexpected visitor came to see me.
| A．are waiting | B．wait |
| C．waited | D．have been waiting |
Whenwhy he was late again, he made up an excuse, saying that he hadn’t caught the regular bus.
| A．asking | B．to be asked |
| C．ask | D．asked |
there was no hard evidence, most people thought he had broken the window of the classroom.
| A．While | B．Because |
| C．Unless | D．When |
Many Chinese companies are nowabout African tourism while others are interested in local agriculture products.
| A．puzzled | B．enthusiastic |
| C．nervous | D．certain |