The boy ought to have gone to school ___, but he slept ___noon.
. If it _____ sunny, we _______ a picnic. But it is raining now.
Many Chinese students find it difficult to remember English words, _______ Yang Mei is an example.
It was easy for her to learn French because _______ of her parents spoke the language.
John Hope Franklin was _______ respected historian and social activist, who wrote about race and _______ struggles of black Americans.
-- I’m very tired, helping with the clothes.----Why not take a rest ,then? ----- ________.