The policeman is still not sure ______ the young man killed himself or was killed.

The policeman is helping the old woman __________ a heavy bag on her back.

The policeman is still not sure ______ the young man killed himself or was killed.

A．if                B．that              C．whether          D．weather

The policeman is helping the old woman __________ a heavy bag on her back.

根据首字母或汉语注释，在答题卡标有题号的横线上，写出空缺处各单词的正确形式。每空只写一词。

1.That house hidden a   ▲   the trees is my grandma's.

2. It's amazing m   ▲   are not afraid of cats now.

3.Air pollution has    ▲  （影响）a lot of people's health.

4.I look much    ▲  （难看的）in the photo.

5.The policeman is    ▲  （控制）the traffic at the crossing.