Weareseekingmethodstoprotectourenvironment

問題詳情：

We are seeking methods to protect our environment________.

A．for moment                                        B．at present

C．at the present                                      D．for a moment

【回答】

【*】　B

at present＝at the present time目前。

知識點：介詞

題型：選擇題