When I came back yesterday evening, my brother _______ his homework.A. is doing B. has done C. was doing
. This computer is the best one ____ the shop, but it is also the most expensive ___all the computers.
—Mum, could I have __________ bread?—Of course.
----What’s your best friend like?----________________________
Millie has _____free time than Sandy because she has____ work to do than Sandy.
. ----Do you often use Baidu?----Yes, it’s one of ___________Internet search engines.