It (rain) ______ last night for the ground is wet.

A．John Smith isn’t in right now.
B．John Smith can’t come to the phone right now.
C．John Smith doesn’t want to speak to the caller.
D．The caller dialed the wrong number.

A．Let me do it.
B．Let me do this dishes.
C．I let Tom buy it this time.
D．No, I don’t mind.