He hadn’t worked hard at his lessons．_______, he failed in the exam．
A．As a result B．However C．Otherwise D．Since then
— When did the meeting begin?
—At four o’clock．It ______ for 15 minutes．
A．was onB．beganC．has been onD．has begun
It is said that the gravity on Mars is only about __________ of the gravity on earth．
A．three-eighthsB．third-eighthC．three-eighthD．third-eighths
After a short time, the bad news had ______all over the city and everybody knew it．
A．showed B．spread C．covered D．Explored
The workers recycle the old newspapers ______use them．
A．so that don’t B．in order not to C．in order to D．so that
I sent ______ e-mail to Amy to say thanks for her help with my study.
A．a B． / C．the D． An
