虚拟语气的初步用法 — 英语词汇题

Complete the sentence with the correct forms of the verbs in brackets: If the hu…

A team is imagining a future study, not describing a real situation. If its memb…

A scientist lacks the equipment to test a new idea. He says, “If our lab ___ a…

人类现在没有鳃（gills），也不能在水下呼吸。选择表达这一…

Lena cannot join the team’s discussion because she does not know sign language…

Maya does not have a lab at home. If she ___ one, she could study human cells mo…