—Would you mind_____the window? It's very hot.

—No, not at all.

A．open                B．to open

C．opening             D．to opening

You look too tired. Why not______a rest?

A．stop to have            B．to stop having

C．stop having             D．to stop having

At times, parents find it difficult ________ with their teenage children

A．talk                  B．talked

C．talking                D．to talk

考点：非谓语动词

I'm sleepy. I prefer ________ at home to going out for a walk.

A．sleeping               B．to sleep

C．slept                  D．sleep

The retired couple enjoy_____photos.They always go out with their cameras

A．take                  B．took

C．to take              D．taking

Seeing their teacher _______ into the classroom, they stopped _______ at once.

A．walk; telling B．entering; to speak

C．enter; to tell D．walking; talking

— I’m looking forward to _____my parents soon. What about you?

— Me too．

A．seeing                    B．see

C．saw                       D．to see

Everyone may feel time____ very quickly when they do something interesting.

A．go by                    B．to go by

C．went by                  D．going by

Our English teacher often says to us,“____ English well is very important.”

A．Learn                   B．Learning

C．Learned                 D．To learning

Many children are left alone in the countryside. Let’s try our best ____ them.

A．help                  B．helping

C．to help                D．helps