问题

The ______ of new inventions(发明) should be to make life easier, not to make it harder.
A:happily; an
B:happily; a
C:happy; a
D:happy; an;
B:happily; a
C:happy; a
D:happy; an;
正确答案是:
同类题型
This is the _________ spot on whichthe first pilgrims landed in America.
She left in _______ that she didn’t even wave goodbye to us.
It was very kind of you to do the washing up, but you _______ it.
The information on theInternet gets around much more rapidly than ____ in the newspaper
The shy girl felt ______ and uncomfortable when she could not answer her teacher’s questions.