﹣Mum，may I go swimming now？
﹣Yes，dear，but remember that you___________go with your dad．（ ）
| A． |
may |
B． |
can |
C． |
must |
Sam is ____about his speech because he thinks he is well prepared．（ ）
A．honestB．confidentC．modestD．curious
We've got everything ready for the picnic．
Do you mean I ______bring anything with me？（ ）
A．can'tB．mustn'tC．couldn'tD．needn't
Could you help me with housework _____you are free today？（ ）
A．sinceB．thoughC．unlessD．until
_____do your parents take exercise，William？
Less than three times a week．（ ）
A．How longB．How muchC．How soonD．How often
Tom wants to study at ______university in Europe，but hasn't decided which one to go to yet．（ ）
A．anB．aC．theD．不填