—What do you think has made Jane so worried?—_______ all the tickets for the stamp show.
#50580
A
Lose
B
Lost
C
Losing
D
To lose
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Teenagers shouldn’t be allowed          .
#48398
A
to drive
B
drive
C
to driving
D
Driving
Tom misses his brother very much and he is looking forward ____ him. 
#48593
A
to hear from
B
hearing from
C
to hearing from
D
heard from
I’m sorry to keep you _______ for almost two hours.
#50943
A
wait
B
to wait
C
waiting
D
waited