将下列句子改为同义句（每空一词）
1、At that time,he often went to church.
He ( )( )( )( ) church( ).
2、You can see many flowers here and there.
( )( )many flowers( ).
3、Sending e-mail is cheaper than making a phone call.
Making a phone call( ) not ( ) cheap ( ) sending e-mail.
注：（ ） 代表一空