suddenly放在句首后面用什么时态

suddenly放在句首后面用一般过去时。

Suddenly I remembered that my friend's birthday is today.

我突然想起来我朋友今天过生日。

Suddenly the signal cut out and I couldn't finish the phone call.

突然信号切断了，我没法继续通话。

Suddenly the car accelerated.

突然车加速了。

Suddenly the screen went blank.

屏幕突然变成一片空白。