Choose the best answer A, B, C or D to complete the following sentences

Choose the best answer A, B, C or D to complete the following sentences.

1. The weather .................. nice yesterday.

A. is

B. was

C. will be

D. has been

2. It's difficult ................ your direction.

A. to follow

B. following

C. to following

D. followed

3. Would you mind .............. in the front of the Taxi, Mark?

A. sit

B. to sit

C. sitting

D. siting