I had wanted to help you last night but I couldn’t spare any time, for I＿＿＿a composition which I have to hand in this morning

sked why he went there,he said he wassent there___for a space flight.

The number of foreign students attending Chinese universitiesrising steadily since1990

Once ________ more attention, the little trees could have grown better.

下列各组中加点字注音有两个错误的一组是 （ ）