The accident happened because he drove ____.

A. He woke up too late that he didn’t have time for breakfast.

C. He woke up so late that he didn’t have time for breakfast.

D. He woke up late enough to have time for breakfast

A. It is cheaper to go by train than to go by air.

B. It is as cheap to go by train as to go by air.

C. It is more expensive to go by train than to go by air.

D. It is as expensive to go by train as to go by air.

A. He is said to be very rich.

B. He is said to have been very rich.

D. He was said to have been very rich.

A. excited

C. excite

D. to excite

A. knew

B. am knowing

C. know 

D. will know

A. by the time

B. while

C. until

D. after