Don’tspend time beating ona wall,     to change it into a door.
#100744
A
hope
B
hoped
C
hoping
D
to hope
推荐题目
Please don’t make so much noise.I     a novel.
#101730
A
writes
B
am writing
C
wrote
D
was writing
—What is that noise?—Oh,I forgot to tell you that the new machine         .
#102478
A
was tested
B
will be tested
C
is being tested
D
has been tested
 Class is beginning. Will you please get the blackboard      .
#103250
A
to clean
B
cleaning
C
cleaned
D
having cleaned