1.（2018?北京）In today's information age, the loss of data _________ cause serious problems for a company.
2.（2018?北京）_________ we don't stop climate change, many animals and plants in the world will be gone.
3.（2018?北京）During the Mid-Autumn Festival, family members often gather together _________ a meal, admire the moon and enjoy moon cakes.
B. to share
C. having shared
4.（2018?北京）They might have found a better hotel if they _________ a few more kilometers.
B. would drive
C. were to drive
D. had driven
5.（2018?北京）Ordinary soap, _________ correctly, can deal with bacteria effectively.
B. to use
6.（2018?北京）_________ along the old Silk Road is an interesting and rewarding experience.
C. Having traveled
7.（2018?天津）If we ___________the flight yesterday, we would be enjoying our holiday on the beach.
A. had caught
C. have caught
D. would catch
8.（2018?天津）I need a new passport so I will have to have my photograph___________.
C. being taken
9.（2018?天津）I can't find my purse. I___________ it in the supermarket yesterday, but I'm not sure.
A. should leave
B. must have left
C. might leave
D. could have left
10.（2018?江苏）There is a good social life in the village, and I wish I _______ a second chance to become more involved.