By the time Robert will finish writing the first draft of his paper, most of the other students will have completed their final draft

There are/ number of/ defense/ a / collaborations / between / and / academic institutions/ growing/ in China

 You/ can/ watch/ The Pig Race/ this/ channel.

Rudolph Nureyev has become one of the greatest dance the ballet world has ever known.

In 1778, he went/ London/ study/ Benjamin West/ for/ four years.

 I/ make/ friends/ foreigner/ in/ chat room.

 visitors/ every year/ This/ has/ more than/ city/ 2000.

Cultural differences/ can/ seen/ in/ conversation/ between/ people/ different countries.

My friend/ age/ twenty.

I’ll make some sandwiches before, I’ll leave for the office in the morning.

Mary found it hard to concentrate on her work because the noise.

The workers/ stopped/ work/ take/ a rest/ because/ they/ felt/ tired.

Although usual living on or under rocks or on coral reefs, marine snails have been observed in a great various of habitats.

We/buy/ her/ flowers/ presents/ a birthday cake.

Scientists and tech companies/ to prevent/ these weapons/ have a responsibility / from becoming reality/ also.

I/ when/ mother/ usually/ in/ having/ my/ confide/ problems.

Because silk is the strongest of all natural fibers, ranking in strong with the synthetic fiber nylon, its delicate look and fell are deceptive .

Viet/ said/ he/ would/ be doing/ experiment/ 10 o’clock/ following day.

 He/ the/ place/ Idol/ won/ second/ contest/ in.

Find the one mistake (A, B, C or D) in the sentences and then correct them: "We’d love to have gone to the barbecue,  but it was possible."

 If/ it/ fine/ tomorrow, we/ go/ the/ dentist.