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_________ 12. 努力使這個(gè)夢(mèng)想成真 ___________________ 13. 去火星的旅途 ________________________________ 14. 愿意搬到火星上 __________________________ 二 當(dāng)堂訓(xùn)練題 Fill in the blanks: 1 I don’t know__________(if, whether) he will e tomorrow. The teacher asked ________(if, whether) we had finished the experiment. Everything depends on________ (if,whether) we have enough money。 I don’t know _________(if, whether) the movie star will e or not. 2 Nobody knew whether he _______(can) pass the exam The teacher said th