please help me with these:
1)The black rhinoceros is listed as a critically.....species
a) endangered
b) dagerous
c) exposed
d) weak

2)A notable....feature of the symposium was the speech by a famous entrepreneur
a) feature
b) attention
c) headline
d) emphasis

3) You have been an...help since I moved out her
a)intense
b) infinite
c) excessive
d) enormous

4) She would...her son to play online games if he got bad marks
a)prevent
b)forbid
c)deny
d) exclude

5) Appliances and electronics are sold out on the second...
a) landing
b) stage
c) floor
d) base

6) The plane arriced after a...of three hours
a) delay
b) stall
c) halt
d) slowing