问题
Mary really hard on his book and thinks he’ll have finished it by Friday.
A:worked
B:has been working
C:had worked
D:has worked;
B:has been working
C:had worked
D:has worked;
正确答案是：
同类题型
What is your main reason for choosing one restaurant another
te! Why are you in such a hurry—-______the : train.
Paper bags produced every year are ____ the world’sproduction of vehicles
_______ is the population of your hometown, Lucy—It’s about 15,000.
I think “Let it go” of Frozen was ___ theme song of this year’s Grammy Awards.