This car is environmentally friendly because it uses electricity instead of gas. , it is less expensive.
A. Besides B. However
C. Instead D. Meanwhile
Hearing the telephone ring, she rushed out of the kitchen and left the water .
A. boil B. boiling
C. boiled D. to boil
Because of health problems, Peter cannot continue to work at the same full pace he has done up to now.
A. as B. which
C. when D. where
As the rule says, every student remain seated until their papers are collected.
A. can B. may
C. shall D. will
--- I went to the ticket office, but the tickets had been sold out already.
--- You could have yourself an unnecessary trip by phoning in advance.
A. prevented B. made
C. enjoyed D. spared
--- Such a small mistake could have been avoided.
--- Yes. But I too nervous to see the zero.
A. am B. have been
C. was D. had been
