Hubei province has also been stricken by the heavy fog and haze, which ________ be worse and worse and will be a threat to human’s health.

See the flags on top of the building? That was we did this morning.

Bill won the first prize in yesterday’s singing competition. –Really His parents must be proud of him.

Look! There is a chair ________ three legs in the meeting room.

I have been keeping the portrait________I can see it every day,as it always reminds me of my childhood in Paris[ ]