We’d better ______ subjects like age, weight or money while talking in Western countries.

Whenever you are to walk on the ice,__________ that it is solid and safe enough.

The teacher and actor __________ to give a talk this evening.

What’s wrong with you , Eric You look tired .–I ______ to prepare for the final exam last night .

The audience fixed their eyes on the magician, _______ about how he performed the magic trick.