He has behaved in the most extraordinary way recently, wonder what can ____ his actions. [ ]

He must be crazy to spend all that money on a car.—Yes, he’s !

Shall we visit Jim tonight?— OKTo make sure that he’s in, we’d better call him up____ .[ ]

The number of students in our class ______ fifty, but a small number of them ______from the country.

What was Jim wearing at the party? — Nothing ________. He was in his usualshirt and jeans.