Had he worked harder, he________ the exams.

A. pay

B. salary

C. wage

D. income

A. increased

B. is increased

C. has increased

D. are increased

A. except

B. unless

C. since

D. if

A. should come

B. is coming

C. comes

D. will come

A. wasn‘t

B. is it

C. was it

D. isn’t it

A. that

B. who

C. which

D. what

A. before

B. until

C. where

D. as

A. how long time I had been

B. how long had I been

C. how long time had I been

D. how long I had been

A. of whom

B. that

C. which

D. whose

A. is to put off

B. is going to put off

C. is to be put off

D. will put off