Does your brother serve in the army?—No, not now.But he_____ in the army for 8 years.[ ]

f you ____________ doing something orhaving something, you must do it or have it.

Please make sure all the lights are ______ before you go to bed.

Is your father a teacher of English in No. l Middle School — No. But he ______ English there for ten years.

I’msurprised more and more people________participate in the morning exercises inthe plaza now.—Morningis a time of day.