Đáp án B
Câu điều kiên loại 3: If S had PII, S would have PII.
Diễn tả điều kiện giả định không có thật trong quá khứ.
Dịch: Nếu Tom lắp chuông báo động, thì tên trộm đã không đột nhập vào nhà anh ấy.
Mark the letter A, B, C or D on your answer sheet to indicate the answer to the following question.
If Tom ______ an alarm, the thieves wouldn't have broken into his house.
A. was installed
B. to install
C. had installed
D. have installed
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
If my cousin _____________ an alarm, the thieves wouldn’t have broken into his house.
A. installs
B. have installed
C. had installed
D. installed
Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions
Jane installed security software on her new computer to ________ it against viruses.
A. protect
B. protector
C. protection
D. protective
Mark the letter A, B, C, or D to indicate the correct answer to each of the following sentences.
He _______ the plants. If he had, they wouldn't have died.
A. can't have watered
B. shouldn't water
C. couldn't water
D. needn't have watered
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
George wouldn't have met Mary ______ to his brother's graduation party
A. had he not gone
B. hadn't he gone
C. if he has not gone
D. if he shouldn't have gone
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
George wouldn't have met Mary________to his brother's graduation party.
A. if he has not gone
B. had he not gone
C. if he shouldn't have gone
D. hadn't he gone
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
We have had the roof of our house _________.
A. to replace
B. replace
C. replaced
D. been replaced
Mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions.
If I _____ it was a formal party, I wouldn't have worn my old jeans and a jumper.
A. knew
B. could know
C. had been knowing
D. had known
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Tom had a lucky escape. He_____killed when a car crashed into the front of his house.
A. could have been
B. must have been
C. should have been
D. would have been
