Charlie ______ be really difficult at times even though he’s a nice person in general.
#63613
A
shall
B
should
C
can
D
must
推荐题目
 -- Are these _______ all from No. 2 Middle School? -- Yes. They often _________ their free time to help the old here.
#74662
A
volunteers; volunteers
B
volunteer; volunteers
C
volunteers; volunteer
D
volunteer; volunteer
— Mike, is this your eraser? — No, it’s not ______.  Maybe it’s __________. 
#75071
A
my; Lily’s
B
me; Lily
C
mine; Lilys’
D
mine; Lily’s
-__________ can you finish your homework, Ben?- In thirty minutes. 
#77165
A
How far
B
How soon
C
How long
D
How often