It is written clearly in the requirements that all passengers _______ check onto board thirty minutes before the plane takes off.
So many directors _________,the board meeting had to be put off.
The grain output is 8 percent higher this year than _______ of last year.
His luggage includes two large cases which ________ as much as 50kg.
-Why didn’t you go to the party ? _______ an invitation, I would have gone to the party .
_______ I admit that the problems are difficult , I don’t agree that they can’t be solved .