Those farmers who _________ move from place to place with their animals in the past have moved into new houses at last.
A. could B. might C. would D. should
Excited by the news, Marie lay in bed with her eyes open while all her family were asleep.
A．widely; soundly B．wide; sound C．widely; sound D．wide; soundly
It was several years I finally realized David had lied to me.
A．when; that B．that; when C．before; that D．until; why
The report indicates that the new power station produces energy as the one built earlier.
A．twice as much B．as twice C．twice much as D．twice much
So far there is no proof people from other planets do exist.
A．how B．what C．which D．that
_____ scores of times , but he still couldn’t understand it ．
A．Having explained B．Having been explained
C．Though it was explained D．It was explained
