choose either the present simple or present continuous in the following

Choose either the present simple or present continuous in the following sentences
1.he's in the bathroom. I _____(to think) he _______(to wash) his hair.2. -Can I speak to your parents, please? -I'm sorry. They ______(to have) lunch at the moment.3. Oh, I _________(to go) to work as a nurse in Africa, in Kenya, and I ______(to look) forward to it because it's such an exotic country for me.4. You _________(always to make) mistekes in your tests. You should be more attentive.5. The world _______(to change) rapidly in such fields as business, art and medicine.