l remember that terrible accident a few days ago, ____ more than 20 pupils were killed.

Having an outdoor meal is always fun, but it can also be damaging to the planet if__________.

My parents are strict with me andthey don’t allow me _____ out late.

下列各句中，没有语病的一项是（3分）

Did your father phone you shortly after the accident?—No, it was a fortnight ________ he gave me a phone call