When we saw her in the street, westopped ______ to her.

Li Ming is in poor health. He should pay more attention exercise.

Ipreferspeaking to listeningin English learning.—Oh, really! I think you should be good at ______ of them.

When I called you this morning, nobody answered the phoneWhere __________?

Look! I can see many apples ______ the tree and many birds ______ the tree.