Choose the best answer

Câu 1:If I ............., I would have said hello.
     A.had seen            B.see              C.saw            D.would see
Câu 2:I...................out if I hadn't been so tired.
     A.wiil go            B.went            C.would have gone             D.would go
Câu 3:If I ..............a camera, I would have taken some pictures.
     A.have            B.had             C.would have             D.had had
Câu 4:You won't pass the examination.................you study more.
     A.as long as          B.unless               C.if           D.whether
Câu 5:If only I..............you wanted to invest money in business.
    A.had known            B.knew            C.have known              D. know
Câu 6:If I were to leave my country, I...................disappointed.
    A.probably be             B.would have been              C.will be               D.would be
Câu 7:If he hadn't wasted too much time, he........................in his examination.
    A.would fail           B.wouldn't fail            C.wouldn't have failed              D.won't fail
Câu 8:If I had taken that English course, I.................much progress.
    A.had made             B.would have made           C.made           D.would make
Câu 9:If I....................you, I'd save some of your lottery winning.
     A.be            B.were           C.am              D.was
Câu 10:If the car..............larger, we would have bought it.
    A.had been             B.have been             C.has been               D.been
Câu 11:If I had enough money, I.....................abroad to improve my English.
   A.will go            B.should go          C.would go              D.should have to go