Why not go out for dinner？My treat this time．
．But I′m busy preparing for an interview．（ ）
A．Not at allB．In your dreams
C．Sounds greatD．Don't mention it
My father will attend the parents 'meeting_________ he is busy．（ ）
| A． |
if |
B． |
unless |
C． |
since |
D． |
when |
Miss Yang usually sets out early in order to___________ the morning rush hour（交通高峰）．（ ）
| A． |
choose |
B． |
cause |
C． |
avoid |
D． |
accept |
﹣Let's hide the prize and give Mom a surprise．
﹣We __________do that．She has known the result．mb（ ）
| A． |
can't |
B． |
mustn't |
C． |
shouldn't |
D． |
needn't |
We should study in a ___________method，or it may be a waste of time．（ ）
| A． |
similar |
B． |
proper |
C． |
natural |
D． |
magic |
The TV play is so popular that _________of my parents want to miss it．（ ）
| A． |
all |
B． |
none |
C． |
both |
D． |
neither |