A long road tests a horse’s strength and a long-term task ________ a man’s heart.
A. provesB. will proveC. is provingD. has proved
If you want to be on the school football team, you ________ train harder.
A．canB．wouldC．mightD．must
Jenny was practicing her speech in the hall when she heard her name ________.
A. callingB. calledC. to callD. having called
I had to catch my flight. That was ________ I left Tom’s party so early yesterday.
A. whatB. howC. whyD. when
Beijing’s new international airport ________ into use in 2019, according to the spokesperson.
A. was putB. will putC. has putD. will be put
I usually sleep with the window open ________ it is really cold.
A. ifB. unlessC. now thatD. in case
