11)
(A) You will have recover by the time i come back.
(B) You will have recovered by the time i come back.
(C) You will have recovered by the time i came back.
(D) You will has recovered by the time i come back.
12)
(A) The train had not left when we reach.
(B) The train has not left when we reached.
(C) The train had not left when we reached.
(D) The train have not left when we reached.
13)
(A) The train had not reached the station before it grew dark.
(B) The train has not reached the station before it grew dark.
(C) The train had not reach the station before it grew dark.
(D) The train had not reach the station before it grow dark.
14)
(A) He would not have spent all the money by the time his father comes.
(B) He will not have spent all the money by the time his father comes.
(C) He will not have spend all the money by the time his father comes.
(D) He will not has spent all the money by the time his father comes.
15)
(A) Had he packed up before he received the orders?
(B) Has he packed up before he received the orders?
(C) Had he pack up before he received the orders?
(D) Has he packed up before he receives the orders?
16)
(A) Has the boys entered the room when the bell rang?
(B) Had the boys entered the room when the bell rang?
(C) Had the boys enter the room when the bell rang?
(D) Had the boys entered the room when the bell rings?
17)
(A) Shall I had recovered by the time the month ends.
(B) Shall I have recovered by the time the month ends.
(C) Shall I has recovered by the time the month ends.
(D) Shall I have recover by the time the month ends.
18)
(A) Will David has spent all the money before his father finds it out.
(B) Will David have spend all the money before his father finds it out.
(C) Will David had spent all the money before his father finds it out.
(D) Will David have spent all the money before his father finds it out.
19)
(A) Alex had been waiting for the bus since full twenty minutes.
(B) Alex had been waiting for the bus for full twenty minutes.
(C) Alex have been waiting for the bus for full twenty minutes.
(D) Alex had been waiting for the bus since full twenty minutes.
20)
(A) They have been living in this tent for many months.
(B) They have been living in this tent since many months.
(C) They has been living in this tent for many months.
(D) They have been living in this tent from many months.