—We all had a lot of fun at the barbecue yesterday. Pity you weren't there.—I really should have gone with you but I________on some remaining problems.
. There are altogether eleven books on the shelf, _____ five are mine. A. on which B. in which C. of which C. from which
Great changes have taken place in that school. It is no longer_____ it was 20 years ago,______ it was so poorly equipped.
I don’t like _____ you speak to her.
Rather than _______everything to the last minute, I always prefer starting early.
The student must have been ill yesterday, ______?