She ___ to school every day.

• go

• goes

• going

• gone

They ___ playing football now.

• is

• are

• am

• was

I ___ a letter yesterday.

• write

• wrote

• written

• writing

We ___ dinner at 8 p.m. last night.

• have

• had

• has

• having

He ___ reading a book when I called him.

• was

• were

• is

• been

She has ___ her homework already.

• do

• did

• done

• doing

Birds ___ in the sky.

• fly

• flies

• flying

• flown

The baby ___ when the bell rang.

• sleep

• sleeps

• was sleeping

• slept

I ___ my keys yesterday.

• lose

• lost

• losing

• loses

The teacher ___ the lesson now.

• explain

• explains

• explained

• is explaining