______is estimated that a round-trip to Mars would take more than a year.
A,That B,what C,There D,It
______leaves the room last ought to turn off the lights.
A,The person B,whoever C,Who D,Anyone
The reason why he was removed was ______he was careless and dishonest.
A,when Bbecause C,that D,what
_____she become an artist may have been due to her father”s influence.
A,what B,how C,that D,when
I haven’t seen ________Maggie since I came here.
A．as lovely a girl as B．so a lovely girl as
C．girl as lovely as D．as a lovely girl as
Totally ________, both of the world famous writers were born and died on the same day and of the same disease.
A．by coincidence B．by incident C．by accident D．by luck
