-Do you know if he will come tomorrow?-No,but if he ,I’ll call you to have a meal together.
The bridge _____ by the farmers themselves in 1982.
There are many tall buildings on ____ sides of the street .
The president _____ all people _____ our environment.
At last, Lucy make the baby ____ and the baby began to laugh.
Must we finish all the homework today or tomorrow? – You ____ worry about it. You may hand it in next week.