It was because of his (careless) ______ that he could not pass the driver’s test.

A．John should come to help them.
B．They cannot finish the work that day.
C．They should go to help John.
D．They might finish the work that day.

A．How about this weekend
B．When shall we go
C．It begins at 8:00 this evening.
D．At the concert hall.