پرسش‌ها با تگ (گرامر انگلیسی)

Sorry, but when you called I ______ a shower.

My friend promised_______me that evening.

Medical research at the cellular level, ……… research on the immune system, has been  made possible through twentieth-century advances in techniques of genetic research. 

If you ____(not arrive) on time, we ____(leave) without you.

I ______ to the cinema.

I like the job, but I think it'll be difficult to ______ nights.

Somebody stole ______ yesterday.

توی اخر جملات فرق didn't she? با doesn't she? چیه؟ یعنی چه زمانی از کدوم استفاده میکنیم؟

فرق  by train  و  on the train چیه ؟

______ are very friendly and very intelligent.