He began to __________ because every means _______ tried already.
#104224
A
lose heart; has been
B
lose heart; had been
C
lose his heart; was
D
lose his heart; had
推荐题目
Ladies and gentlemen, please fasten your seat belts.The plane __________. 
#101135
A
takes off
B
has taken off
C
is taking off
D
took off
After a fire broke out in the workshop, a lot of equipment ____.
#102704
A
is damaged
B
had damaged
C
was damaged
D
damaged
The news he looked forward to       .
#100811
A
came at lastest
B
coming at the least
C
coming at the lastest
D
came recently
Many scientists believe sea levels ______ by more than one meter by the end of the 21st century.
#100381
A
will be risen
B
will have risen
C
will have been
D
will be rising