15.Helen: I’m sorry that I ______ pass the test.Mom: It’s OK. We know that you ______ your best.(A)h
問題詳情
15.Helen: I’m sorry that I ______ pass the test.Mom: It’s OK. We know that you ______ your best. (A)haven’t; are trying (B)didn’t; tried (C)won’t; will try (D)could; have done