Students ________ play with fire in the classroom. It’s quite dangerous.
| A． |
mustn’t |
B． |
must |
C． |
couldn’t |
D． |
could |
﹣How is Mary getting on with her lessons？
﹣She will fail the exam______ she studies harder．（ ）
| A． |
after |
B． |
unless |
C． |
as soon as |
D． |
when |
﹣Did you watch Running Man last night？ It was so exciting．
﹣No．I _____with my grandpa then．（ ）
| A． |
have talked |
B． |
am talking |
| C． |
was talking |
D． |
talked |
Mom，I'm old enough to wash________ clothes and______．You can have a rest now．（ ）
| A． |
my；your |
B． |
my；yours |
C． |
your；my |
D． |
yours；mine |
﹣Hi，Tom．I haven't seen your parents for days．Where are they？
﹣They aren't at home．They_______ America for holiday．（ ）
| A． |
were in |
B． |
have gone to |
| C． |
have been to |
D． |
will go to |
﹣Mom，may I drink the milk on the table？
﹣No，you can't．It smells______．It has gone bad．（ ）
| A． |
good |
B． |
well |
C． |
terribly |
D． |
terrible |