He often thinks things before he makes a decision.

I wasn’t blaming anyone; I said errors like this could be avoided

David,howoldisyourfatherthisyear—______.Andwejusthadaspecialpartyforhis_____birthdaylastweekend.

May I go to the science museum with you next Saturday—You can’t ________you have a ticket. I have only one ticket.

We’d be very grateful if you could join us because your cooperation will _____ the timely completion of our project.