With so many children playing outside and making so much noise, he seemed unable to __________ on his homework.
Although cats can not see in complete darkness, their eyes are much more _______to light than human eyes.
There’re more than 100 elements found in nature, ______ are metals.
— Tony,you look upset. What’s the matter?— I had my proposal _______ again.
______ Father offers to us children is honesty and kindness.
If they win the final tonight, the team are going to tour around the city ______by their supporters.