We ________ the difficulty together,but why didn't you tell me?
—I’ve studied growing plants as one of my interests. Could I make some suggestions? —___________.
His illness _____ his absence.
You’ve been so kind to us that we will always be deeply _____.
—Mr. Green was born in China. —It’s no _____ he can speak Chinese so well.matter B. doubt C. wonder D. problem
The meeting was to have started at nine o’clock, but the chairman had not _____ by ten.