Look! David is helping his mother ______

Look! David is helping his mother _______ the room.

#39685

is cleaning

cleaning

cleans

clean

推荐题目

Our physics teacher told us that light ________ faster than sound.

#40111

travel

travels

is travelling

has travelled

—Alan, it’s late. Why not go to bed?— Jenny hasn’t come back yet. I _______ for her.

#42133

waited

have waited

am waiting

was waiting

_____ your sister _____ playing the piano these days?

#40241

Is, practise

Does, practises

Is, practising

Does, practised

If Mary goes,_________________.

#40543

so do I

so I do

so will I

I will, either

The population of the world         still         now.

#42222

will; grow

has; grown

is; growing

is; grown

共2675题