请说明理由1.The heavy snowstorm made the mountain climbers ---hal

请说明理由
1.
The heavy snowstorm made the mountain climbers ---half way.
a.stop b.to stop c.stopping d.stopped
2.Zhou Weilun could hardly speak English three years ago,------?
a.couldn't he b.could he c.didn't he
3.Why didn't you answer the p-- this afternoon?
Oh,I was having a meeting then.
4.I think great changes will take place in the 22nd c--
5.He wants to read two more books.改为同义句
He wants to read----- ------ ------
6.This pair of shoes is too small for me .Please give me ------ ------.另一双