▶ Choose the best answer

1. Millions of christmas cards ......... every year.

A.are sent. B.send C.sent. D.were sent

2. Mai saw her old friend while she......... the street.

A.crossed B.is crossing

C.were crossing D.was crossing

3. They want .........to the mặt now.

A.to go B.go C.going. D.togoing

I don't know how do .......a computer

A can I play B.played

C.to play D.must