The GDP of China has become No. 2 in the world ______ the life of most common people is becoming harder and harder.

       A. since                    B. while                   C. when                   D. as

 She returned home and found her house, together with everything in the neighborhood, ______ by the earthquake.

A. has been ruined         B. had been ruined       C. has ruined             D. had ruined

—How can I improve my English handwriting?

—Copy a model of calligraphy (书法), in my opinion, ______ you’ll make progress little by little.

A. or　　　　　　　　　　　　　 B. when　　　　　　　　　　　 C. and　　　　　　　　　　　　 D. until

 New technology is used in teaching now. ______, teachers’ energy is saved, and students become more interested in the lessons, too.

A. As a result                B. On average               C. On the other hand     D. By accident

—Excuse me, could I pay a visit to you at 9 a.m. next week?

—I’ m sorry. I ______ an important meeting then.

A. will be having　　　　　 B. am having　　　　　　　　 C. am to have　　　　　　　 D. would have

 ______ measures are taken, the traffic jam in Panzhihua will become more and more serious.

A. Because                 B. If                        C. When                     D. Unless

 Some experts think that language learning is ______ easier for children as their tongues are more flexible (灵活).

A. very                       B. quite                      C. fairly                  D. much

On average, there are 800 tornadoes in the US each year, ______ about 80 deaths and 1,500 injuries.

A. have caused B. causing C. caused D. to be causing

 Thousands of tourists come to Panzhihua in winter, many of ______ want to enjoy the warm sunshine here.

A. that                          B. which                      C. them                        D. whom

The team leader as well as his five team members ______ for their good performance by the English teacher.

A. praises B. praise C. is praised D. are praised