情态动词填空
问题描述：
情态动词填空
1 You ____fall downif you aren't careful.
2 ______I prepare my speech for the meeting?No,you _____.
3 _____you play chess when you were ten?No,I _____.But I ______do it now.
4 It's raining outside.You ______ _____ take an umbrella.
5 ______you mend the fence?Sorry,I___________.
用can may must could have to can't couldn't needn't
答
1 You (may) fall downif you aren't careful.
2 (Must) I prepare my speech for the meeting?No,you (needn't).
3 (Could) you play chess when you were ten?No,I (couldn't) .But I (can) do it now.
4 It's raining outside.You (have to) take an umbrella.
5 (Could) you mend the fence?Sorry,I (can't).