用适当的副词或介词填空。

They had a pleasant chat ________ a cup of tea．

用适当的副词或介词填空。

I often confuse her ________ her twin sister．

用适当的副词或介词填空。

As neither of the two sides would give ________, the agreement fell through．

用适当的副词或介词填空。

The flowers grow more beautiful than ever ________．

用适当的副词或介词填空。

When we are crossing the streets, we must watch out ________ the cars．