The manager was worried about the press conference his assistant ______ in his place but luckily, everything was going on smoothly. 
#100739
A
gave
B
gives
C
was giving
D
had given
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When the old man ______ to walk back to his house, the sun       itself behind the mountain. 
#101758
A
started; had already hidden
B
had started ;had already hidden
C
had started; was hiding
D
was starting; hid
 If their marketing plans succeed,they ________ their sales by 20 percent.
#99749
A
will increase
B
have been increasing
C
have increased
D
would be increasing