— Mike, what did our monitor say just now?—Every student as well as teachers who are to visit the museum _____ asked to be at the school gate before 6:30 in the morning.
----- Tom has won the first prize in the singing contest of our school. ------- __________ .You see he always works hardest.
Harry lived in London for three months,______ he learned some English.
Those boys _____ many times not to go on line, but it doesn’t make any difference.
Many old houses have been ____to make way for new roads.
____time,Chinese farmers have invented many farming techniques.