Fill in the blanks by determines . i was waiting for _ friends _ gate no 8 of _ hotel Samrat . but none of them arrived . i had booked _ table for five people . but surprisingly _ people were present

Fill in the blanks with 'a certain' or 'certain': ..... people were standing at the gate.

Fill in the blanks with one of the two verbs given in the brackets : A large number of people ……..waiting for the Prime Minister. (was/were)

Fill in the blanks with 'each' or 'every': I have read almost ...... book I had.

A group of 4 people Amit, Raghu, Neel and Nikhil, arrived in a car at a friend house. The group was forced to park around the corner due to lack of parking space. It was raining heavily and group had only one umbrella. They decided to share it. Two persons would go at a time to the friend's house and one of them would come back with the umbrella. The process would be repeated until all four people reached the friend's house. If Amit, Raghu, Neel and Nikhil take 1, 2, 5 and 10 minutes respectively at their fastest speed to go the friend's house, the minimum time required for all of them to reach the friend's house is :

A group of 4 people Amit, Raghu, Neel and Nikhil, arrived in a car at a friend house. The group was forced to park around the corner due to lack of parking space. It was raining heavily and group had only one umbrella. They decided to share it. Two persons would go at a time to the friend's house and one of them would come back with the umbrella. The process would be repeated until all four people reached the friend's house. If Amit, Raghu, Neel and Nikhil take 1, 2, 5 and 10 minutes respectively at their fastest speed to go the friend's house, the minimum time required for all of them to reach the friend's house is :