题目
题型:期中题难度:来源:
[ ]
B. work
C. working
D. are working
答案
核心考点
试题【Look! There are some workers _____ in the factory. [ ]A. to work B. work C. 】;主要考察你对分词等知识点的理解。[详细]
举一反三
[ ]
B. having tied
C. to be tied
D. tied
[ ]
B. pour
C. to pour
— Listen, Mum! Can you hear somebody _____ upstairs?
[ ]
B. going
C. to go