Some insects ______ the colour of their surroundings to protect themselves.

We are anxious about the spreading of H7N9, hoping it’ll ______ less threatening soon.

Why not get some work experience first ______ go straight on to university?

His lack of professional knowledge _______for the failure of the experiment.

After he retired from office, Rogers __________painting for a while, but soon lost interest.

The exhibition is always changing. It will ________ those who love Impressionist and Post-impressionist paintings.

Einstein liked Bose’s paper so much that he ________ his own work and translated it into German.

On the contrary, I think it is Truman, ______ you, ______ to blame.