助動詞問題（301〜325）
| No. | 問題 | 選択肢 | 答えと解説 |
|---|---|---|---|
| 301 | You ___ not smoke here. It's prohibited. | A. must B. can C. should D. would | 解答と解説答え：A. must |
| 302 | He ___ play the piano beautifully. | A. can B. should C. may D. shall | 解答と解説答え：A. can |
| 303 | I ___ rather stay home tonight. | A. could B. would C. must D. might | 解答と解説答え：B. would |
| 304 | They ___ have left already. | A. might B. would C. can D. will | 解答と解説答え：A. might |
| 305 | You ___ always ask if you're unsure. | A. could B. should C. may D. will | 解答と解説答え：B. should |
| 306 | He ___ be sleeping now. | A. must B. shall C. could D. would | 解答と解説答え：A. must |
| 307 | We ___ not be able to attend the meeting. | A. might B. must C. would D. shall | 解答と解説答え：A. might |
| 308 | ___ I borrow your book? | A. Should B. Might C. May D. Shall | 解答と解説答え：C. May |
| 309 | She ___ to be more careful. | A. should B. may C. must D. can | 解答と解説答え：A. should |
| 310 | You ___ be joking! | A. will B. must C. can D. have to | 解答と解説答え：B. must |
| 311 | She ___ not know the answer. | A. could B. might C. may D. must | 解答と解説答え：D. must |
| 312 | We ___ have gone the wrong way. | A. must B. should C. could D. might | 解答と解説答え：D. might |
| 313 | ___ you please explain it again? | A. Would B. Shall C. Could D. Might | 解答と解説答え：A. Would |
| 314 | I ___ swim across the river when I was young. | A. would B. can C. could D. shall | 解答と解説答え：C. could |
| 315 | You ___ finish your homework before dinner. | A. should B. can C. may D. might | 解答と解説答え：A. should |
| 316 | He ___ not be home yet. | A. must B. can C. could D. might | 解答と解説答え：D. might |
| 317 | I ___ be wrong, but I think he lied. | A. must B. shall C. might D. would | 解答と解説答え：C. might |
| 318 | You ___ have told me earlier! | A. could B. might C. should D. can | 解答と解説答え：C. should |
| 319 | He ___ like to join us for dinner. | A. will B. may C. would D. must | 解答と解説答え：C. would |
| 320 | They ___ be there already; I saw their car. | A. must B. should C. may D. can | 解答と解説答え：A. must |
| 321 | You ___ not cheat on the exam. | A. shall B. must C. can D. mustn't | 解答と解説答え：D. mustn't |
| 322 | I ___ never forget your kindness. | A. must B. shall C. will D. can | 解答と解説答え：C. will |
| 323 | He ___ not agree with the proposal. | A. can B. might C. will D. would | 解答と解説答え：D. would |
| 324 | You ___ go now if you're ready. | A. may B. must C. should D. can | 解答と解説答え：A. may |
| 325 | I ___ stay a bit longer if you like. | A. might B. shall C. could D. will | 解答と解説答え：C. could |