As you can see, the number of the students ______rising these days.

A．keep

B．was keeping

C．were keeping

D．keeps

To ______ good relationships with your teachers and classmates, you should learn to share ups and downs with them.

If you keep practicing your son in football, he          to be a famous player.

Who else except a millionaire could ________ to use such an expensive car?

Jack ______ the bus as soon as it stopped; and then to his joy he met an old friend of his on that bus.

If you don’t know what it means, ________ the dictionary.

The numbers that researchers get from the experiments can be _______, just like number puzzles.

Don’t touch your eyes, nose and mouth, because they aren’t covered by skin and can _______ the virus more easily.

Childhood memories _______ the new gardener that she has a little nature knowledge after all.

When I was in Suzhou, I found all the streets ________ neatly (整齐地).