Jenny is on holiday now. Could you tell me _____.
A. when will she come back
B. when she will come back
C. when she came back
The novel is great. It's well worth _______.
A. read B. reads C. reading
My neighbor asked me ______ I heard the big noise last night or not.
A. whether B. if C. what
—Do you know some robots are able to serve as waiters in restaurants?
—Really?_____ interesting it is!
A. What B. What a C. How
Do you like the pictures _____ are on show?
A. which B. who C. where
—How does Jack usually go to work?
—He used to drive a car, but now he _____ there to lose weight.
A. is used to walk B. is used to walking C. used to walk