from typing import Dict


def _build_request_url(
        base: str,
        params_dict: Dict[str, str]) -> str:
    """Returns an URL combined from base and parameters

    :param base: base url
    :type base: str

    :param params_dict: dictionary of parameter names and values
    :type params_dict: Dict[str, str]

    :return: a complete url
    :rtype: str
    """
    parameters = "&".join([f"{k}={v}" for k, v in params_dict.items()])
    url = base + "?" + parameters
    return url