A.TillB.By thenC.SinceD.Only

【题目】— Can I call you back at two o'clock this afternoon?
— I'm sorry, but by then I ____ to Beijing. How about five?
A.fly
B.will fly
C.will be flying
D.am flying

【题目】I______ thank you too much for all your help to my son while we were away from home.
A.won't
B.can't
C.can
D.will

【题目】If he takes on this work, he will have no choice but ______ an even greater challenge.
A.meets
B.meeting
C.meet
D.to meet

A.that don’tB.who don’tC.who doesn’tD.which does

【题目】—The trip shouldn't take more than an hour.
—_______.it is at least two hours.
A.I guess so
B.That's it
C.You must be joking
D.It depends