They still go on working, ________ they feel tired.
#35098
A
for
B
although
C
because
D
but
推荐题目
Be careful!. We must _____ play on the street. 
#35502
A
seldom
B
always
C
never
D
usually
I think Jack does his homework _________ than anyone else in his class.
#35241
A
careful
B
more carefully
C
the most carefully
D
more careful
I carried the bowl with both hands________, so that I wouldn’t break it.
#35436
A
carefully
B
happily
C
quickly
D
carelessly
 It rains so _______ that people can _________ go hiking in the mountains.
#35078
A
hardly, hardly
B
hard, hard
C
hard, hardly
D
hardly, hard
 --_______ does your father watch TV? --He is always busy, so he _______watches TV.
#35332
A
How long; sometimes
B
How often; hardly ever
C
How many; never
D
How much; always