1 . Technological innovations, ____ good marketing, will promote the sales of these products.

A．combined with

B．combining with

C．having combined with

D．to be combined with

2 . A large number of paintings are collected and displayed in the British Museum, the most famous one ________(estimate) to be worth more than 80 million dollars. （所给词的适当形式填空）

3 . ______in painting, John didn’t notice evening approaching.

A．To absorb	B．To be absorbed
C．Absorbed	D．Absorbing

4 . With eyes no longer ________(fix) on our phones, we had a chance to really enjoy each other’s company. （所给词的适当形式填空）

5 . You'd better keep him i________. That his father has died as a consequence of an unexpected car accident. （根据首字母单词拼写）

6 . To learn English well, we should find chances to hear English ______ as much as we can.

A．speak

B．speaking

C．spoken

D．to speak

7 . Guizhou Province, _____ by Lonely Planet among the top 10 regions to visit in 2020, has become a promising travel destination.

A．ranked

B．being ranked

C．having ranked

D．to be ranked

8 . （2015·江苏）Much time ________sitting at a desk, office workers are generally troubled by health problems.

A．being spent	B．having spent
C．spent	D．spending

9 . The old man from Australia was very happy when he was able to make himself ______ in his broken Chinese.

A．understand

B．to understand

C．understanding

D．understood

10 . The experiment shows that proper amount of exercise, if ________ (carry) out regularly, can improve our health. (所给词的适当形式填空)