Определить видо -временную форму и залог : the problem of the structure of matter is constantly occupying the minds of many scientists.

Present continuous активный (действительный)залог

Present Continuous,залог:действительный(активный)

ответ:1. Accidents__b___ by careless driving.

a. Is often caused b. are often caused c. was often caused

2. The suitcases__c___ by our mother soon.

a. Are packed b. were packed c. will be packed

3. I__b___ when I drove through this forest last night.

a. Am frightened b. was frightened c. will be frightened

4. Clothes___b at laundry every week.

a. Was washed b. are washed c. will be washed

5. Mikec_ an invitation to the party tomorrow.

a. Is sent b. was sent c. will be sent

1. He__b___ to give a speech at the last party.

a. Is asked b. was asked c. will be asked

2. The tickets___b__ by our secretary today, but later.

a. Is booked b. will be booked c. will booked

3. Newspapers__a___ at newsagent’s.

a. Are sold b. was sold c. will be sold

4. The work___c__ soon.

a. Isn’t finished b. wasn’t finished c. won’t be finished

5. Films___b__ at the cinema every hour.

a. Is shown b. are shown c. are showed

Объяснение:

1) I started work this morning at 8 a.m.

 2) My office is on the second floor.

 3) His office is at the top of the stairs.

 4) Mary's birthday is in March.

 5) Susanne had a headache at the weekend.

 6) I had a meal in the train.

 7) I visited the museum on Monday.

 8) Gerhard buys things in the supermarket.

 9) I'll go to the seaside on holidays.

 10)The TV-set is in the living room

 11)There were a lot of people at the party.

 12)I have a cup of tea in the morning.

 13)David bought his car in 1998.

 14)Read the text at the bottom of the page.

 15) I saw Mrs. Jones waiting on the bus stop.

 16)I often visit my parents at Christmas.

 17)I stayed in a nice hotel in London.

 18)I'm moving to a new flat on 7 August.

 19) The party will be in the evening.

 20) Gerhard has some nice pictures hanging on his office wall.