1.The visitors... the gardens first and then they ... to their rooms
A) were shown ... were taken
B) showed ... taken
C) were shown... took
D) was shown ... was taken
2. When Alan was younger he... to keep snakes
A) was used
B) used
C) got used
D) use
3.I'm sorry i ... phone you yeserday.
A) couldn't
B) could
C) may not
D) mightn't