Complete the sentences with the correct forms of the verbs given (using Past Simple or Present Perfect). Write one or two words in each gap.
Theya film star today. (to see)
Theya new DVD and a video player recently. (to buy)
Last week wea new scary thriller. (to watch)
Last week, Janeten DVDs with cartoons. (to rent)

"They saw a film star today. (to see)" - For this sentence, we use the past simple form of the verb "see" because it refers to a specific action that happened in the past. The subject "They" performed the action of seeing a film star today.

"They have bought a new DVD and a video player recently. (to buy)" - In this sentence, we use the present perfect form of the verb "buy" because it indicates an action that started in the past (recently) and has a connection to the present. The subject "They" performed the action of buying a new DVD and a video player.

"Last week we watched a new scary thriller. (to watch)" - Here, the past simple form of the verb "watch" is used because it denotes a specific action that occurred in the past (last week). The subject "we" performed the action of watching a new scary thriller.

"Last week, Jane has rented ten DVDs with cartoons. (to rent)" - In this sentence, we use the present perfect form of the verb "rent" because it indicates an action that started in the past (last week) and has a connection to the present. Additionally, the adverb "ten" indicates a specific quantity (number) of DVDs. The subject "Jane" performed the action of renting ten DVDs with cartoons.

It's important to note the differences between the past simple and present perfect tenses. The past simple tense is used to describe finished actions that happened at a specific time in the past, while the present perfect tense is used for actions that started in the past and still have a connection to the present, or for actions that occurred recently.