____ a lot of work to do, all the workers are not allowed to take their holidays.
23.What we want_____good textbooks.
22.Half of the food in the bag_____bad.You’d better throw it away.
21. More than one high official_____by the police since the mayor war shot dead.
20.She is the only one of the students who____a winner of the match. A.1s B are C.have been D.had been
19.To play table tennis and to go swimming_____good for character training A is B.are C was D were