求5道英文题
1.I （） let him know it as soon as he （） back.
A：will,will come B:×,comes C:×,come D:will,comes
2.---() you have to finish the work now?--- No,I ().
A:Do,don't B:Don't,do C:Must,need't D:Do do
3.---Must I go there now?---No,you ().
A:must't B:can't C:don't D:needn't
4.She isn't sure what to do tonight.She () go to the cinema.
A:must B:can C:may D:has to
5.Neither of us () good at music.
A:is B:are C:be D:was