Положите глаголы в скобках в истинное обычное либо настоящее постоянное время.

Положите глаголы в скобках в истинное обычное или настоящее постоянное время. Помогите пожалуйста. Безотлагательно надо. Заблаговременно спасибо


1) John often ... (to send) e-mail letters to his friends abroad.
2) Paul ... (to write) an e-mail letter to his friend in Canada now.
3) Margaret ... (to look) for a better job at the moment.
4) We ... (to attend) language courses three times a week.
5) The secretary ... (tobe.) busy now. She ... (toprepare) the documents for the conference.
6) My elder brother ... (always to make fun) of me!
7) The professor ... (not to examine) patients now. He ... (to give) a lecture to the students at the moment. He usually ... (to
examine) the patients in the morning.
8) The article ... (to contain) the results of important researches in medicine.
9) You never ... (to tell) me about your problems at school. I'm a bit surprised that you ... (to ask) me for a piece of advice now.
10) Most oils .. (to boil) at 200300 'C. 11)... the musicians ... (to have) lunch now? No, they .... They ... (to rehearse) in
the assembly hall. They ... (to perform) some new song's at the concert tomorrow.
12)... doctors ... (to use) antibiotic drugs to fight viruses? No, antibiotic drugs ... (not to work) against viruses. Doctors
usually ... (to prescribe) antibiotics against bacterial infections.
13) Max ... (always to play) pranks on his classmates!
14) ...- you ... (to wait) for a ferry? Yes, we ... . The ferry ... (to arrive) at four o'clock.
15) ... Peter and Tim ... (togo) fishing next Thursday? Yes, ... . They often ... (to go) fishing together. And they always ... (to
invite) me to join them.