He is one of the most excellent students in our class, and he always _____ himself in his studies.

The flower is dead. I ___ it more water.

ou mind if I play some rock music now, Peter— Andy issleeping now

changes ______in the city, and a lot of factories ______

Studies have shown that 45 percent of reptile species and 24 percent of butterflies in these countries are in danger of ________.[ ]