问题
The students were singing an English song _______ Mr. Xiang came into the classroom.
A:be
B:to be
C:was
D:will be;
B:to be
C:was
D:will be;
正确答案是：
同类题型
What have you been ____ these days? —-Preparing for my daughter’s wedding party
What was the party like?—WonderfulIt’s years __________I enjoyed myself so much
So far nothing _____ TomI want to know the reason _______ he hasn’t written to me
Who told you about the result of the exam–The teacher _______.