پرسش‌ها با تگ (گرامر)

He knew no one to whom  he could resort for help

میشه درباره was  و were توضیح بدین؟

مثلا در جمله  I'm home most of the time  چرا   از at home استفاده نشد؟

آیا  "some book "  vs " a book "    فرق داره؟

From the point of view of the public purse, as mothers ....................... employment they are likely to claim fewer benefits and to generate extra revenues through income tax and national insurance contributions. سلام دوستان ..........در جای خالی کسی میتونه با تحلیل بگه enter صحیح است یا entering ?

در چه زمانی بعد از   ing   از   to   استفاده میکنیم؟

You might encounter are a computer freezing 

Illness requiring referral to hospital  چرا فعل بالا ing گرفته

سلام  کاربرد زمان "present perfect"  و ساختارش چیه؟