We must________the weather into consideration first when climbing mountains.[ ]

he help of the new teacher,____number of the students in my class who have made____ great progress inEnglish up to now is far larger

Excuse me, could you tell me________ — Wait a moment. It is coming in tenminutes.

I don’t ________ to be an expert on cars, but I do know that there is something wrong with your brakes.

(2013·安徽重点中学一模)Not only ________ to turn off the lights in the kitchen, but we also failed to lock the front door.