________twiceayear，whetheritisacar，abusoratruck，isarule...

問題詳情：

________ twice a year，whether it is a car，a bus or a truck，is a rule that every driver must obey in this city.

A．Examining  B．Examined

C．Having been examined  D．Being examined

【回答】

D　[考查非謂語動詞。句意：無論是汽車，公交車還是卡車，每年檢查兩次是這個城市的每個司機都要遵守的規則。根據句意可知此處應用examine的動名詞的被動式being examined作句子的主語。故選D。]

知識點：非謂語動詞

題型：選擇題