45.You can use my car ………………..you drive carefully.
A.unless B. as long as C. as soon as D. when
46. If everyone……………….an extra hour a day, it would greatly increase production.
A. work B. works C. working D. worked
47. If energy…………………….inexpensive and unlimited, many things in the world would be different.
A.is B. were C. will be D. would be
48. Don't bother to ring me ………………….it's important.
A.unless B. in case C. if D. as
49.If you help me with this exercise, I …………….do the same for you one day.
A. will B. would C. was D. am
50. According to the timetable, if the train…………..on time, we………….arrive at 5.30.
A. leaves/ would B. left/ would C. leaves/ will D. was leaving/ would
51. If I could speak Spanish, I …………………..next year studying in Mexico.
A. will spend B. had spent
C. would spend D. would have spent
52. The bus won't stop ………………….you ring the bell.
A. if B. as soon as C. providing D. unless
53. You'd better take a coat ………………..it gets cold.
A. if B. in case C. as long as D. while
54. If you ………………..to my advice in the first place, you wouldn't be in this mess right now.
A. listen B. will listen C. listened D. had listened
55. If it …………….fine tomorrow, we will go to the coast.
A. will be B. was C. is D. being
56. You …………..yourself ill if you don't eat properly.
A. were to make B. make C. would make D. will make
58. …………….more help, I can call my neighbour.
A.Should I need B. Needed
C. I have needed D. I should need
59.Come on! ……………….we hurry, we'll miss the plane!
A. if B. unless C. in case D. supposed
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