-If you have time tonight，I’d like to invite you to a ball. -That’s very nice of you，but are you ____?
#20767
A
free
B
careful
C
serious
D
true
推荐题目
—Shall we go to see him right now?—I’m afraid not. This weekend may be a ____time
#19730
A
good
B
better
C
best
D
well
Frank put the medicine into a top drawer to make sure it would not be to the kids.
#18525
A
available
B
convenient
C
voluntary
D
accessible
As we know, the coming of radio in this century made ocean sailing much ______.
#19856
A
cheaper
B
safer
C
easier
D
faster