=>
32. Your car might be stolen if you had left the keys in it.
-> might be V3/ed
33. The fire could be caused by a short circuit.
-> could be V3/ed
34. Lan's friends are going to be invited to her birthday party.
-> is/am/are going to be V3/ed
35. The door of the classroom couldn't be opened by Lien.
-> could (not) be V3/ed
36. That news should be announced as soon as possible.
-> should be V3/ed
37. The scientific book has to be returned to the library by Phong.
-> have/has to be V3/ed
38. The memorial monument will be rebuilt by the government.
-> will be V3/ed
39. Phuong may be elected their leader by the students.
-> may be V3/ed
40. Papers written in pencils won't be accepted by the teacher.
-> won't be V3/ed